diff --git a/src/ScreenSyncOverlay.cpp b/src/ScreenSyncOverlay.cpp
index b0ba604e4b..f0e93f398c 100644
--- a/src/ScreenSyncOverlay.cpp
+++ b/src/ScreenSyncOverlay.cpp
@@ -1,356 +1,356 @@
-#include "global.h"
-#include "ScreenSyncOverlay.h"
-#include "ScreenDimensions.h"
-#include "ScreenManager.h"
-#include "GameState.h"
-#include "Song.h"
-#include "PrefsManager.h"
-#include "GamePreferences.h"
-#include "InputEventPlus.h"
-#include "LocalizedString.h"
-#include "AdjustSync.h"
-#include "ActorUtil.h"
-
-static bool IsGameplay()
-{
-	return SCREENMAN && SCREENMAN->GetTopScreen() && SCREENMAN->GetTopScreen()->GetScreenType() == gameplay;
-}
-
-REGISTER_SCREEN_CLASS( ScreenSyncOverlay );
-
-static LocalizedString REVERT_SYNC_CHANGES	( "ScreenSyncOverlay", "Revert sync changes" );
-static LocalizedString CURRENT_BPM		( "ScreenSyncOverlay", "Current BPM - smaller/larger" );
-static LocalizedString SONG_OFFSET		( "ScreenSyncOverlay", "Song offset - notes earlier/later" );
-static LocalizedString MACHINE_OFFSET		( "ScreenSyncOverlay", "Machine offset - notes earlier/later" );
-static LocalizedString HOLD_ALT			( "ScreenSyncOverlay", "(hold Alt for smaller increment)" );
-
-void ScreenSyncOverlay::Init()
-{
-	Screen::Init();
-	
-	m_quad.SetDiffuse( RageColor(0,0,0,0) );
-	m_quad.SetHorizAlign( align_left );
-	m_quad.SetXY( SCREEN_CENTER_X+10, SCREEN_TOP+100 );
-	this->AddChild( &m_quad );
-
-	m_textHelp.LoadFromFont( THEME->GetPathF("Common", "normal") );
-	m_textHelp.SetHorizAlign( align_left );
-	m_textHelp.SetXY( SCREEN_CENTER_X+20, SCREEN_TOP+100 );
-	m_textHelp.SetDiffuseAlpha( 0 );
-	m_textHelp.SetShadowLength( 2 );
-	m_textHelp.SetText( 
-		REVERT_SYNC_CHANGES.GetValue()+":\n"
-		"    F4\n" +
-		CURRENT_BPM.GetValue()+":\n"
-		"    F9/F10\n" +
-		CURRENT_BPM.GetValue()+":\n"
-		"    F11/F12\n" +
-		MACHINE_OFFSET.GetValue()+":\n"
-		"    Shift + F11/F12\n" +
-		HOLD_ALT.GetValue() );
-	this->AddChild( &m_textHelp );
-	
-	m_quad.ZoomToWidth( m_textHelp.GetZoomedWidth()+20 ); 
-	m_quad.ZoomToHeight( m_textHelp.GetZoomedHeight()+20 ); 
-
-	m_textStatus.SetName( "Status" );
-	m_textStatus.LoadFromFont( THEME->GetPathF(m_sName, "status") );
-	ActorUtil::LoadAllCommandsAndOnCommand( m_textStatus, m_sName );
-	this->AddChild( &m_textStatus );
-
-	m_textAdjustments.SetName( "Adjustments" );
-	m_textAdjustments.LoadFromFont( THEME->GetPathF(m_sName,"Adjustments") );
-	ActorUtil::LoadAllCommandsAndOnCommand( m_textAdjustments, m_sName );
-	this->AddChild( &m_textAdjustments );
-	
-	Update( 0 );
-}
-
-void ScreenSyncOverlay::Update( float fDeltaTime )
-{
-	this->SetVisible( IsGameplay() );
-	if( !IsGameplay() )
-	{
-		HideHelp();
-		return;
-	}
-
-	Screen::Update(fDeltaTime);
-
-	UpdateText();
-}
-
-bool g_bShowAutoplay = true;
-void ScreenSyncOverlay::SetShowAutoplay( bool b )
-{
-	g_bShowAutoplay = b;
-}
-
-static LocalizedString AUTO_PLAY		( "ScreenSyncOverlay", "AutoPlay" );
-static LocalizedString AUTO_PLAY_CPU		( "ScreenSyncOverlay", "AutoPlayCPU" );
-static LocalizedString AUTO_SYNC_SONG		( "ScreenSyncOverlay", "AutoSync Song" );
-static LocalizedString AUTO_SYNC_MACHINE	( "ScreenSyncOverlay", "AutoSync Machine" );
-static LocalizedString AUTO_SYNC_TEMPO		( "ScreenSyncOverlay", "AutoSync Tempo" );
-static LocalizedString OLD_OFFSET	( "ScreenSyncOverlay", "Old offset" );
-static LocalizedString NEW_OFFSET	( "ScreenSyncOverlay", "New offset" );
-static LocalizedString COLLECTING_SAMPLE( "ScreenSyncOverlay", "Collecting sample" );
-static LocalizedString STANDARD_DEVIATION( "ScreenSyncOverlay", "Standard deviation" );
-void ScreenSyncOverlay::UpdateText()
-{
-	// Update Status
-	vector<RString> vs;
-
-	if( g_bShowAutoplay )
-	{
-		PlayerController pc = GamePreferences::m_AutoPlay.Get();
-		switch( pc )
-		{
-		case PC_HUMAN:						break;
-		case PC_AUTOPLAY:	vs.push_back(AUTO_PLAY);	break;
-		case PC_CPU:		vs.push_back(AUTO_PLAY_CPU);	break;
-		default:
-			FAIL_M(ssprintf("Invalid PlayerController: %i", pc));
-		}
-	}
-
-	SongOptions::AutosyncType type = GAMESTATE->m_SongOptions.GetCurrent().m_AutosyncType;
-	switch( type )
-	{
-	case SongOptions::AUTOSYNC_OFF:							break;
-	case SongOptions::AUTOSYNC_SONG:	vs.push_back(AUTO_SYNC_SONG);		break;
-	case SongOptions::AUTOSYNC_MACHINE:	vs.push_back(AUTO_SYNC_MACHINE);	break;
-	case SongOptions::AUTOSYNC_TEMPO:	vs.push_back(AUTO_SYNC_TEMPO);		break;
-	default:
-		FAIL_M(ssprintf("Invalid autosync type: %i", type));
-	}
-
-	if( GAMESTATE->m_pCurSong != NULL  &&  !GAMESTATE->IsCourseMode() )	// sync controls available
-	{
-		AdjustSync::GetSyncChangeTextGlobal( vs );
-		AdjustSync::GetSyncChangeTextSong( vs );
-	}
-
-	m_textStatus.SetText( join("\n",vs) );
-
-
-	// Update SyncInfo
-	bool bVisible = GAMESTATE->m_SongOptions.GetCurrent().m_AutosyncType != SongOptions::AUTOSYNC_OFF;
-	m_textAdjustments.SetVisible( bVisible );
-	if( bVisible )
-	{
-		float fNew = PREFSMAN->m_fGlobalOffsetSeconds;
-		float fOld = AdjustSync::s_fGlobalOffsetSecondsOriginal;
-		float fStdDev = AdjustSync::s_fStandardDeviation;
-		RString s;
-		s += OLD_OFFSET.GetValue() + ssprintf( ": %0.3f\n", fOld );
-		s += NEW_OFFSET.GetValue() + ssprintf( ": %0.3f\n", fNew );
-		s += STANDARD_DEVIATION.GetValue() + ssprintf( ": %0.3f\n", fStdDev );
-		s += COLLECTING_SAMPLE.GetValue() + ssprintf( ": %d / %d", AdjustSync::s_iAutosyncOffsetSample+1, AdjustSync::OFFSET_SAMPLE_COUNT );
-		m_textAdjustments.SetText( s );
-	}
-}
-
-static LocalizedString CANT_SYNC_WHILE_PLAYING_A_COURSE	("ScreenSyncOverlay","Can't sync while playing a course.");
-static LocalizedString SYNC_CHANGES_REVERTED		("ScreenSyncOverlay","Sync changes reverted.");
-bool ScreenSyncOverlay::Input( const InputEventPlus &input )
-{
-	if( !IsGameplay() )
-		return Screen::Input(input);
-
-	if( input.DeviceI.device != DEVICE_KEYBOARD )
-		return Screen::Input(input);
-
-	enum Action
-	{
-		RevertSyncChanges,
-		ChangeSongBPM,
-		ChangeGlobalOffset,
-		ChangeSongOffset,
-		Action_Invalid
-	};
-	Action a = Action_Invalid;
-
-	bool bIncrease = true;
-	switch( input.DeviceI.button )
-	{
-	case KEY_F4:	a = RevertSyncChanges; break;
-	case KEY_F9:	bIncrease = false; /* fall through */
-	case KEY_F10:	a = ChangeSongBPM; break;
-	case KEY_F11:	bIncrease = false; /* fall through */
-	case KEY_F12:
-		if( INPUTFILTER->IsBeingPressed( DeviceInput(DEVICE_KEYBOARD, KEY_RSHIFT)) ||
-		    INPUTFILTER->IsBeingPressed( DeviceInput(DEVICE_KEYBOARD, KEY_LSHIFT)) )
-			a = ChangeGlobalOffset;
-		else
-			a = ChangeSongOffset;
-		break;
-
-	default:
-		return Screen::Input(input);
-	}
-
-	if( GAMESTATE->IsCourseMode() && a != ChangeGlobalOffset )
-	{
-		SCREENMAN->SystemMessage( CANT_SYNC_WHILE_PLAYING_A_COURSE );
-		return true;
-	}
-
-	switch( a )
-	{
-	case RevertSyncChanges:
-		if( input.type != IET_FIRST_PRESS )
-			return false;
-		SCREENMAN->SystemMessage( SYNC_CHANGES_REVERTED );
-		AdjustSync::RevertSyncChanges();
-		break;
-	case ChangeSongBPM:
-		{
-			float fDelta = bIncrease? +0.02f:-0.02f;
-			if( INPUTFILTER->IsBeingPressed( DeviceInput(DEVICE_KEYBOARD, KEY_RALT)) ||
-				INPUTFILTER->IsBeingPressed( DeviceInput(DEVICE_KEYBOARD, KEY_LALT)) )
-			{
-				fDelta /= 20;
-			}
-			switch( input.type )
-			{
-				case IET_RELEASE:	fDelta *= 0;	break;
-				case IET_REPEAT:
-				{
-					if( INPUTFILTER->GetSecsHeld(input.DeviceI) < 1.0f )
-						fDelta *= 0;
-					else
-						fDelta *= 10;
-					break;
-				}
-				default: break;
-			}
-			if( GAMESTATE->m_pCurSong != NULL )
-			{
-				TimingData &sTiming = GAMESTATE->m_pCurSong->m_SongTiming;
-				BPMSegment * seg = sTiming.GetBPMSegmentAtBeat( GAMESTATE->m_Position.m_fSongBeat );
-				seg->SetBPS( seg->GetBPS() + fDelta );
-				const vector<Steps *>& vpSteps = GAMESTATE->m_pCurSong->GetAllSteps();
-				FOREACH( Steps*, const_cast<vector<Steps *>&>(vpSteps), s )
-				{
-					TimingData &pTiming = (*s)->m_Timing;
-					// Empty means it inherits song timing,
-					// which has already been updated.
-					if( pTiming.empty() )
-						continue;
-					float second = sTiming.GetElapsedTimeFromBeat(GAMESTATE->m_Position.m_fSongBeat);
-					seg = pTiming.GetBPMSegmentAtBeat(pTiming.GetBeatFromElapsedTime(second));
-					seg->SetBPS( seg->GetBPS() + fDelta );
-				}
-			}
-		}
-		break;
-	case ChangeGlobalOffset:
-	case ChangeSongOffset:
-		{
-			float fDelta = bIncrease? +0.02f:-0.02f;
-			if( INPUTFILTER->IsBeingPressed( DeviceInput(DEVICE_KEYBOARD, KEY_RALT)) ||
-				INPUTFILTER->IsBeingPressed( DeviceInput(DEVICE_KEYBOARD, KEY_LALT)) )
-			{
-				fDelta /= 20; /* 1ms */
-			}
-			switch( input.type )
-			{
-				case IET_RELEASE:	fDelta *= 0;	break;
-				case IET_REPEAT:
-				{
-					if( INPUTFILTER->GetSecsHeld(input.DeviceI) < 1.0f )
-						fDelta *= 0;
-					else
-						fDelta *= 10;
-				}
-				default: break;
-			}
-
-			switch( a )
-			{
-				case ChangeGlobalOffset:
-				{
-				PREFSMAN->m_fGlobalOffsetSeconds.Set( PREFSMAN->m_fGlobalOffsetSeconds + fDelta );
-				break;
-				}
-
-				case ChangeSongOffset:
-				{
-					if( GAMESTATE->m_pCurSong != NULL )
-					{
-						GAMESTATE->m_pCurSong->m_SongTiming.m_fBeat0OffsetInSeconds += fDelta;
-						const vector<Steps *>& vpSteps = GAMESTATE->m_pCurSong->GetAllSteps();
-						FOREACH( Steps*, const_cast<vector<Steps *>&>(vpSteps), s )
-						{
-							// Empty means it inherits song timing,
-							// which has already been updated.
-							if( (*s)->m_Timing.empty() )
-								continue;
-							(*s)->m_Timing.m_fBeat0OffsetInSeconds += fDelta;
-						}
-					}
-					break;
-				}
-				default: break;
-			}
-		}
-		break;
-	default:
-		FAIL_M(ssprintf("Invalid sync action choice: %i", a));
-	}
-
-	ShowHelp();
-	UpdateText();
-	return true;
-}
-
-void ScreenSyncOverlay::ShowHelp()
-{
-	m_quad.StopTweening();
-	m_quad.BeginTweening( 0.3f, TWEEN_LINEAR );
-	m_quad.SetDiffuseAlpha( 0.5f );
-
-	m_textHelp.StopTweening();
-	m_textHelp.BeginTweening( 0.3f, TWEEN_LINEAR );
-	m_textHelp.SetDiffuseAlpha( 1 );
-
-	m_quad.Sleep( 4 );
-	m_quad.BeginTweening( 0.3f, TWEEN_LINEAR );
-	m_quad.SetDiffuseAlpha( 0 );
-
-	m_textHelp.Sleep( 4 );
-	m_textHelp.BeginTweening( 0.3f, TWEEN_LINEAR );
-	m_textHelp.SetDiffuseAlpha( 0 );
-}
-
-void ScreenSyncOverlay::HideHelp()
-{
-	m_quad.FinishTweening();
-	m_textHelp.FinishTweening();
-}
-
-
-/*
- * (c) 2001-2005 Chris Danford
- * All rights reserved.
- * 
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, and/or sell copies of the Software, and to permit persons to
- * whom the Software is furnished to do so, provided that the above
- * copyright notice(s) and this permission notice appear in all copies of
- * the Software and that both the above copyright notice(s) and this
- * permission notice appear in supporting documentation.
- * 
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
- * THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
- * INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
- * OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
- * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
- * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- * PERFORMANCE OF THIS SOFTWARE.
- */
+#include "global.h"
+#include "ScreenSyncOverlay.h"
+#include "ScreenDimensions.h"
+#include "ScreenManager.h"
+#include "GameState.h"
+#include "Song.h"
+#include "PrefsManager.h"
+#include "GamePreferences.h"
+#include "InputEventPlus.h"
+#include "LocalizedString.h"
+#include "AdjustSync.h"
+#include "ActorUtil.h"
+
+static bool IsGameplay()
+{
+	return SCREENMAN && SCREENMAN->GetTopScreen() && SCREENMAN->GetTopScreen()->GetScreenType() == gameplay;
+}
+
+REGISTER_SCREEN_CLASS( ScreenSyncOverlay );
+
+static LocalizedString REVERT_SYNC_CHANGES	( "ScreenSyncOverlay", "Revert sync changes" );
+static LocalizedString CURRENT_BPM		( "ScreenSyncOverlay", "Current BPM - smaller/larger" );
+static LocalizedString SONG_OFFSET		( "ScreenSyncOverlay", "Song offset - notes earlier/later" );
+static LocalizedString MACHINE_OFFSET		( "ScreenSyncOverlay", "Machine offset - notes earlier/later" );
+static LocalizedString HOLD_ALT			( "ScreenSyncOverlay", "(hold Alt for smaller increment)" );
+
+void ScreenSyncOverlay::Init()
+{
+	Screen::Init();
+	
+	m_quad.SetDiffuse( RageColor(0,0,0,0) );
+	m_quad.SetHorizAlign( align_left );
+	m_quad.SetXY( SCREEN_CENTER_X+10, SCREEN_TOP+100 );
+	this->AddChild( &m_quad );
+
+	m_textHelp.LoadFromFont( THEME->GetPathF("Common", "normal") );
+	m_textHelp.SetHorizAlign( align_left );
+	m_textHelp.SetXY( SCREEN_CENTER_X+20, SCREEN_TOP+100 );
+	m_textHelp.SetDiffuseAlpha( 0 );
+	m_textHelp.SetShadowLength( 2 );
+	m_textHelp.SetText( 
+		REVERT_SYNC_CHANGES.GetValue()+":\n"
+		"    F4\n" +
+		CURRENT_BPM.GetValue()+":\n"
+		"    F9/F10\n" +
+		CURRENT_BPM.GetValue()+":\n"
+		"    F11/F12\n" +
+		MACHINE_OFFSET.GetValue()+":\n"
+		"    Shift + F11/F12\n" +
+		HOLD_ALT.GetValue() );
+	this->AddChild( &m_textHelp );
+	
+	m_quad.ZoomToWidth( m_textHelp.GetZoomedWidth()+20 ); 
+	m_quad.ZoomToHeight( m_textHelp.GetZoomedHeight()+20 ); 
+
+	m_textStatus.SetName( "Status" );
+	m_textStatus.LoadFromFont( THEME->GetPathF(m_sName, "status") );
+	ActorUtil::LoadAllCommandsAndOnCommand( m_textStatus, m_sName );
+	this->AddChild( &m_textStatus );
+
+	m_textAdjustments.SetName( "Adjustments" );
+	m_textAdjustments.LoadFromFont( THEME->GetPathF(m_sName,"Adjustments") );
+	ActorUtil::LoadAllCommandsAndOnCommand( m_textAdjustments, m_sName );
+	this->AddChild( &m_textAdjustments );
+	
+	Update( 0 );
+}
+
+void ScreenSyncOverlay::Update( float fDeltaTime )
+{
+	this->SetVisible( IsGameplay() );
+	if( !IsGameplay() )
+	{
+		HideHelp();
+		return;
+	}
+
+	Screen::Update(fDeltaTime);
+
+	UpdateText();
+}
+
+bool g_bShowAutoplay = true;
+void ScreenSyncOverlay::SetShowAutoplay( bool b )
+{
+	g_bShowAutoplay = b;
+}
+
+static LocalizedString AUTO_PLAY		( "ScreenSyncOverlay", "AutoPlay" );
+static LocalizedString AUTO_PLAY_CPU		( "ScreenSyncOverlay", "AutoPlayCPU" );
+static LocalizedString AUTO_SYNC_SONG		( "ScreenSyncOverlay", "AutoSync Song" );
+static LocalizedString AUTO_SYNC_MACHINE	( "ScreenSyncOverlay", "AutoSync Machine" );
+static LocalizedString AUTO_SYNC_TEMPO		( "ScreenSyncOverlay", "AutoSync Tempo" );
+static LocalizedString OLD_OFFSET	( "ScreenSyncOverlay", "Old offset" );
+static LocalizedString NEW_OFFSET	( "ScreenSyncOverlay", "New offset" );
+static LocalizedString COLLECTING_SAMPLE( "ScreenSyncOverlay", "Collecting sample" );
+static LocalizedString STANDARD_DEVIATION( "ScreenSyncOverlay", "Standard deviation" );
+void ScreenSyncOverlay::UpdateText()
+{
+	// Update Status
+	vector<RString> vs;
+
+	if( g_bShowAutoplay )
+	{
+		PlayerController pc = GamePreferences::m_AutoPlay.Get();
+		switch( pc )
+		{
+		case PC_HUMAN:						break;
+		case PC_AUTOPLAY:	vs.push_back(AUTO_PLAY);	break;
+		case PC_CPU:		vs.push_back(AUTO_PLAY_CPU);	break;
+		default:
+			FAIL_M(ssprintf("Invalid PlayerController: %i", pc));
+		}
+	}
+
+	SongOptions::AutosyncType type = GAMESTATE->m_SongOptions.GetCurrent().m_AutosyncType;
+	switch( type )
+	{
+	case SongOptions::AUTOSYNC_OFF:							break;
+	case SongOptions::AUTOSYNC_SONG:	vs.push_back(AUTO_SYNC_SONG);		break;
+	case SongOptions::AUTOSYNC_MACHINE:	vs.push_back(AUTO_SYNC_MACHINE);	break;
+	case SongOptions::AUTOSYNC_TEMPO:	vs.push_back(AUTO_SYNC_TEMPO);		break;
+	default:
+		FAIL_M(ssprintf("Invalid autosync type: %i", type));
+	}
+
+	if( GAMESTATE->m_pCurSong != NULL  &&  !GAMESTATE->IsCourseMode() )	// sync controls available
+	{
+		AdjustSync::GetSyncChangeTextGlobal( vs );
+		AdjustSync::GetSyncChangeTextSong( vs );
+	}
+
+	m_textStatus.SetText( join("\n",vs) );
+
+
+	// Update SyncInfo
+	bool bVisible = GAMESTATE->m_SongOptions.GetCurrent().m_AutosyncType != SongOptions::AUTOSYNC_OFF;
+	m_textAdjustments.SetVisible( bVisible );
+	if( bVisible )
+	{
+		float fNew = PREFSMAN->m_fGlobalOffsetSeconds;
+		float fOld = AdjustSync::s_fGlobalOffsetSecondsOriginal;
+		float fStdDev = AdjustSync::s_fStandardDeviation;
+		RString s;
+		s += OLD_OFFSET.GetValue() + ssprintf( ": %0.3f\n", fOld );
+		s += NEW_OFFSET.GetValue() + ssprintf( ": %0.3f\n", fNew );
+		s += STANDARD_DEVIATION.GetValue() + ssprintf( ": %0.3f\n", fStdDev );
+		s += COLLECTING_SAMPLE.GetValue() + ssprintf( ": %d / %d", AdjustSync::s_iAutosyncOffsetSample+1, AdjustSync::OFFSET_SAMPLE_COUNT );
+		m_textAdjustments.SetText( s );
+	}
+}
+
+static LocalizedString CANT_SYNC_WHILE_PLAYING_A_COURSE	("ScreenSyncOverlay","Can't sync while playing a course.");
+static LocalizedString SYNC_CHANGES_REVERTED		("ScreenSyncOverlay","Sync changes reverted.");
+bool ScreenSyncOverlay::Input( const InputEventPlus &input )
+{
+	if( !IsGameplay() )
+		return Screen::Input(input);
+
+	if( input.DeviceI.device != DEVICE_KEYBOARD )
+		return Screen::Input(input);
+
+	enum Action
+	{
+		RevertSyncChanges,
+		ChangeSongBPM,
+		ChangeGlobalOffset,
+		ChangeSongOffset,
+		Action_Invalid
+	};
+	Action a = Action_Invalid;
+
+	bool bIncrease = true;
+	switch( input.DeviceI.button )
+	{
+	case KEY_F4:	a = RevertSyncChanges; break;
+	case KEY_F9:	bIncrease = false; /* fall through */
+	case KEY_F10:	a = ChangeSongBPM; break;
+	case KEY_F11:	bIncrease = false; /* fall through */
+	case KEY_F12:
+		if( INPUTFILTER->IsBeingPressed( DeviceInput(DEVICE_KEYBOARD, KEY_RSHIFT)) ||
+		    INPUTFILTER->IsBeingPressed( DeviceInput(DEVICE_KEYBOARD, KEY_LSHIFT)) )
+			a = ChangeGlobalOffset;
+		else
+			a = ChangeSongOffset;
+		break;
+
+	default:
+		return Screen::Input(input);
+	}
+
+	if( GAMESTATE->IsCourseMode() && a != ChangeGlobalOffset )
+	{
+		SCREENMAN->SystemMessage( CANT_SYNC_WHILE_PLAYING_A_COURSE );
+		return true;
+	}
+
+	switch( a )
+	{
+	case RevertSyncChanges:
+		if( input.type != IET_FIRST_PRESS )
+			return false;
+		SCREENMAN->SystemMessage( SYNC_CHANGES_REVERTED );
+		AdjustSync::RevertSyncChanges();
+		break;
+	case ChangeSongBPM:
+		{
+			float fDelta = bIncrease? +0.02f:-0.02f;
+			if( INPUTFILTER->IsBeingPressed( DeviceInput(DEVICE_KEYBOARD, KEY_RALT)) ||
+				INPUTFILTER->IsBeingPressed( DeviceInput(DEVICE_KEYBOARD, KEY_LALT)) )
+			{
+				fDelta /= 20;
+			}
+			switch( input.type )
+			{
+				case IET_RELEASE:	fDelta *= 0;	break;
+				case IET_REPEAT:
+				{
+					if( INPUTFILTER->GetSecsHeld(input.DeviceI) < 1.0f )
+						fDelta *= 0;
+					else
+						fDelta *= 10;
+					break;
+				}
+				default: break;
+			}
+			if( GAMESTATE->m_pCurSong != NULL )
+			{
+				TimingData &sTiming = GAMESTATE->m_pCurSong->m_SongTiming;
+				BPMSegment * seg = sTiming.GetBPMSegmentAtBeat( GAMESTATE->m_Position.m_fSongBeat );
+				seg->SetBPS( seg->GetBPS() + fDelta );
+				const vector<Steps *>& vpSteps = GAMESTATE->m_pCurSong->GetAllSteps();
+				for (Steps *s : vpSteps)
+				{
+					TimingData &pTiming = s->m_Timing;
+					// Empty means it inherits song timing,
+					// which has already been updated.
+					if( pTiming.empty() )
+						continue;
+					float second = sTiming.GetElapsedTimeFromBeat(GAMESTATE->m_Position.m_fSongBeat);
+					seg = pTiming.GetBPMSegmentAtBeat(pTiming.GetBeatFromElapsedTime(second));
+					seg->SetBPS( seg->GetBPS() + fDelta );
+				}
+			}
+		}
+		break;
+	case ChangeGlobalOffset:
+	case ChangeSongOffset:
+		{
+			float fDelta = bIncrease? +0.02f:-0.02f;
+			if( INPUTFILTER->IsBeingPressed( DeviceInput(DEVICE_KEYBOARD, KEY_RALT)) ||
+				INPUTFILTER->IsBeingPressed( DeviceInput(DEVICE_KEYBOARD, KEY_LALT)) )
+			{
+				fDelta /= 20; /* 1ms */
+			}
+			switch( input.type )
+			{
+				case IET_RELEASE:	fDelta *= 0;	break;
+				case IET_REPEAT:
+				{
+					if( INPUTFILTER->GetSecsHeld(input.DeviceI) < 1.0f )
+						fDelta *= 0;
+					else
+						fDelta *= 10;
+				}
+				default: break;
+			}
+
+			switch( a )
+			{
+				case ChangeGlobalOffset:
+				{
+				PREFSMAN->m_fGlobalOffsetSeconds.Set( PREFSMAN->m_fGlobalOffsetSeconds + fDelta );
+				break;
+				}
+
+				case ChangeSongOffset:
+				{
+					if( GAMESTATE->m_pCurSong != NULL )
+					{
+						GAMESTATE->m_pCurSong->m_SongTiming.m_fBeat0OffsetInSeconds += fDelta;
+						const vector<Steps *>& vpSteps = GAMESTATE->m_pCurSong->GetAllSteps();
+						for (Steps *s : vpSteps)
+						{
+							// Empty means it inherits song timing,
+							// which has already been updated.
+							if( s->m_Timing.empty() )
+								continue;
+							s->m_Timing.m_fBeat0OffsetInSeconds += fDelta;
+						}
+					}
+					break;
+				}
+				default: break;
+			}
+		}
+		break;
+	default:
+		FAIL_M(ssprintf("Invalid sync action choice: %i", a));
+	}
+
+	ShowHelp();
+	UpdateText();
+	return true;
+}
+
+void ScreenSyncOverlay::ShowHelp()
+{
+	m_quad.StopTweening();
+	m_quad.BeginTweening( 0.3f, TWEEN_LINEAR );
+	m_quad.SetDiffuseAlpha( 0.5f );
+
+	m_textHelp.StopTweening();
+	m_textHelp.BeginTweening( 0.3f, TWEEN_LINEAR );
+	m_textHelp.SetDiffuseAlpha( 1 );
+
+	m_quad.Sleep( 4 );
+	m_quad.BeginTweening( 0.3f, TWEEN_LINEAR );
+	m_quad.SetDiffuseAlpha( 0 );
+
+	m_textHelp.Sleep( 4 );
+	m_textHelp.BeginTweening( 0.3f, TWEEN_LINEAR );
+	m_textHelp.SetDiffuseAlpha( 0 );
+}
+
+void ScreenSyncOverlay::HideHelp()
+{
+	m_quad.FinishTweening();
+	m_textHelp.FinishTweening();
+}
+
+
+/*
+ * (c) 2001-2005 Chris Danford
+ * All rights reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, and/or sell copies of the Software, and to permit persons to
+ * whom the Software is furnished to do so, provided that the above
+ * copyright notice(s) and this permission notice appear in all copies of
+ * the Software and that both the above copyright notice(s) and this
+ * permission notice appear in supporting documentation.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
+ * THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
+ * INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
+ * OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+ * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */