a few little changes

Themes/_fallback/Scripts/02 Actor.lua

@@ -141,7 +141,7 @@ function Actor:bezier(...)
    for i=3,c do
       b[#b+1] = a[i]
    end
-   a[1]:tween(a[2], "TweenMode_Bezier", b)
+   self:tween(a[2], "TweenMode_Bezier", b)
 end	 
 
 -- (c) 2006 Glenn Maynard

src/ScreenOptionsEditCourse.cpp

@@ -394,8 +394,11 @@ void ScreenOptionsEditCourse::SetCurrentSong()
 			if( index != 0 )
 				pSong = m_vpSongs[ index - 1 ];
 		}
+		if ( pSong != NULL )
+		{
 			GAMESTATE->m_pCurSong.Set( pSong );
 		}
+	}
 }
 
 void ScreenOptionsEditCourse::SetCurrentSteps()

src/arch/ArchHooks/ArchHooks_Win32.cpp

@@ -19,7 +19,7 @@ static bool g_bIsMultipleInstance = false;
 void InvalidParameterHandler( const wchar_t *szExpression, const wchar_t *szFunction, const wchar_t *szFile,
 					  unsigned int iLine, uintptr_t pReserved )
 {
-	FAIL_M( "Invalid parameter" );
+  FAIL_M( "Invalid parameter" ); //TODO: Make this more informative
 }
 #endif