diff -r b1fe47b11b99 -r 5645462cc78f QTfrontend/SDLs.cpp
--- a/QTfrontend/SDLs.cpp	Tue Dec 21 10:46:52 2010 +0100
+++ b/QTfrontend/SDLs.cpp	Tue Dec 21 14:42:47 2010 +0100
@@ -166,7 +166,7 @@
     SDLMusicInit();
 
     if (music == NULL) {
-        music = Mix_LoadMUS((datadir->absolutePath() + "/Music/main theme.ogg").toLocal8Bit().constData());
+        music = Mix_LoadMUS((datadir->absolutePath() + "/Music/main_theme.ogg").toLocal8Bit().constData());
 
     }
     Mix_VolumeMusic(MIX_MAX_VOLUME - 28);