Distorted Sound/Fuzzy Sound

[Finchy]

I've just fired up Rome: Total War after running an AntiVirus scan (AVG), and started a new campaign. The start video is fine, but once the campaign map is up, the sound is all fuzzy and distorted. I restarted the PC, and watched a video clip oin My Documents, still fuzzy, but to a lesser extent. I also here the same fuzzyness when I move the mouse wheel, and sometimes sound refuses to play at all.

 

[zephead]

what motherboard and soundcard are you using? have you got all the latest drivers for your system's components? does the problem occurr with headphones too?