Identify a problem

[Linken]

I'm pretty stumped. I have no idea what the problem is.

Basically, a few nights ago my PC shut down (BSOD) while playing a game, I booted it up and then my Ventrilo/Winamp wasn't recognizing any DirectSound.

So I rebooted again, next time around they worked. Then I tried to load a game which was Counter Strike 1.6, and when trying to join a server it says unable to find model blah blah (this was a LAN server, nothing I needed to download). I had to reinstall steam and CS to get CS to run, and at the time CS was running great after that.

Now after all this, I loaded mIRC while playing CS to try and find a match, and my CS just started to feel all sluggish, it feels like a graphic issue but I get 100frames constant, but when I jump the screen doesn't update properly. It's hard to explain, but it doesn't feel smooth at all.

I have reformatted completely and it's still got the same problem, and I have tried a different game also after the reformat which was Quake 4..

What do you guys think it could be? I've stress tested memory, CPU and GFX and nothing.

 

[Cr0fty]

Drivers?

 

[Linken]

I've re-installed the graphics drivers to the latest ones about 4/5 times, and I've reset BIOS settings to fail-safe defaults (F8 revision)

 

[deuse]

In nvidia control panel,have you set it to single display mode?
Also if your using a flat screen has you turned V sync off?

This can cause probs.

EDIT or even turn off V sync in the game..

 

[closeratio]

Sounds like something might have become corrupted when the BSOD occured. Have you run the chkdsk utility to see if there are any errors on your disk?