It is very common and normal to see up to a +/-10% variance in voltages. As for the debug logs, maybe someone else can help you there. If I had to take a guess at your problem, I'd say it is likely an audio codec causing this. I had a similar issue a while back with games from EA. I had to unload the AC3 codec dlls in order to play any of the games I have from EA. To test this, see if you can use a string to force the game to load without sound, if it loads fine, this is likely the problem, or at least you narrow it down to a sound issu, which you already suspect.