diff --git a/stepmania/src/PrefsManager.cpp b/stepmania/src/PrefsManager.cpp
index 8c748aad70..6aaf5f5a2f 100644
--- a/stepmania/src/PrefsManager.cpp
+++ b/stepmania/src/PrefsManager.cpp
@@ -256,7 +256,7 @@ PrefsManager::PrefsManager()
 
 	m_bAllowUnacceleratedRenderer = false;
 	m_bThreadedInput = true;
-	m_bThreadedMovieDecode = true;
+	m_bThreadedMovieDecode = false;
 	m_bScreenTestMode = false;
 	m_sMachineName = "NoName";
 	m_sIgnoredMessageWindows = "";