I've just finished playing through GF, and I loved it! I was going to play through some of my favourite parts, and check out the dialogue trees I haven't explored, but now I'm not getting any voices.
The music and sound effects all seem to be working fine. I tried reinstalling, but there was no difference. I also had to put up with the game crashing a lot, but I didn't really care as long as I saved regularly.
I downloaded the patch, and I installed CPUkiller, which didn't seem to do a whole lot. I tried disabling the hyper threading thing at startup, but there was no hyper threading option availible for disabling. I'm running the game on Windows XP. Can anyone help?