[Mobhack]

Well if it was working before - then what have you changed on your system (e.g. parhaps installed a new sound card or drivers ?).

Try switching all sound off, in both the in-game preferences screen and also the mouse click on the misc tab of the game options programme screen.

Also - some programme may have casued bad clusters on your hard drive?. Try running disc checking (right click on the drive in explorer, tools, error checking. also a defrag of the drive may be worthwhile).

Cheers
Andy