Call of duty world at war

When playing COD WAW multiplayer online it freezes and says: COD WAW multiplayer has stopped working. It sometimes then says Unhandled Exception as the error.

This usually happens anywhere from about 10mins of playing up to 1 hour.

Im not sure if it is Punk Buster or somthing else causing this. Was hoping sombody could help me out.

These are the fixes I have tried:
-Latest realtek HD Audio
-Latest video card drivers
-Update Direct X
-Try different compatibility modes for both the game and Punkbuster
-Change audio to 44khz i think it is
-Latest game patch

Here is my system:
Intel C2D 8500
Asus P5Q Pro m/b
Geil 4gb DDR2
EVGA 285GTX
WD Raptor 150gig
1TB Hitachi
Win 7 6.1 build 7600

Thank you if any one can help me out

Andiez

Ohhh my windows is 64bit too, I haven't had a single reply no one can help? or am I not including important information?

Thank you

64 bit architectures are sketchy with most games. Usually older ones.... I used to run Win XP x64 and very few games ran without errors. I have the same questions and concerns about Win 7 x64. Its the only reason I'm waiting to buy it.

I have no problems playing CoD:WaW on W7 Pro x64 SP & MP since I got the RTM a month or so ago...all I can suggest is to check PB setup (there is a Sticky at the top of this game forum) and for some plugging in a microphone has stopped the game from crashing (a fix that has been used since CoD4)