And coincidentally (or not), the issue has only been happening since I got my wheel. It seems to be permanently stuck in software mode, which won't do for several reasons; some of which are the speakers crackle, the FPS isn't as good and most importantly, the game keeps hanging on the loading screen. I tried 'verify integrity of game cache' in Steam, and that worked - it returned Rapture as the default. It worked, until I quit the game; when I tried to play again, it had once again returned to software mode! Here is the relevant part of my hardware settings info file: <unsupported type="hardware" index="0" voices="0" /> <mixing type="software" index="1" voices="192" /> <unsupported type="rapture3D" index="5" voices="0" /> </audio_card> So this one clearly has Rapture as unsupported for some reason. And here is the part of the copy I made after the verify game cache process: <mixing type="hardware" index="0" voices="127" /> <mixing type="software" index="1" voices="192" /> <mixing type="rapture3D" index="5" voices="192" /> </audio_card> But even if I delete the other file and run with that one, once in game, all I get is software mode - same thing happens if I delete both of the files. At first I thought this might be some sort of conflict between the wheel and soundcard's drivers, but when I tried DiRT 2 today, it was fine - it ran in Rapture by default and there were no problems. This is a hugely annoying problem and is rendering F1 2010 unplayable right now. Would reinstalling it completely help? It's a drastic step, but if that's what I have to do, then that's what I'll do. Incidentally, what's best: hardware or Rapture? Typical, I take a long break from F1 2010 and then when my wheel arrives, this has to start happening! Thanks in advance for any help.