It's my first post here, so hey all. I don't know if it's the right section for my problem, so sorry if it's not. I've got a problem with my PC. Yesterday, my PC has started working really slow, and the sound ''lagged'' aswell. I've tried running Quake 3, but it was hanging after few secs, tried it a few times, while Starcraft was running fine for around 1 hour, and no hanging or restarts. I've tried reinstalling Windows (I have Windows XP Pro.), and the PC didn't work slow anymore, but it STILL was hanging in normal mode and in Q3... So, I've tried to run antivirus scan, and defragmenting, but during the defragmentation Pc hanged. I restarted it and it took really long to load Windows.. And the sound was lagging again, with PC running slow again. Tried reinstalling the windows again, but after some time the same thing happens. Tried formattic drive C:, and reinstalling windows, but after some times the same thing occurs. So... It takes really long to load Windows, the sound lags, everything is working slow, and after a few seconds it hangs on pretty much every game, just Starcraft works fine. Hangs while just in Windows, doing nothing, too. I took a log from HijackThis, but only in safe mode... It just hangs in normal, so sorry for this. =/ I run Spybot search and destroy in Safe Mode, it found like 6 things and I deleted them, but it didn't help. So, I could really use some help, and I'd appreciate it.