Multiplayer and sound issues!

[BorgX]

when i start multiplayer it loads menu for a split second then crashes to desktop with the message "the instruction at 0x0067b4da referance memory at 0x1d45fd00 the memory could not be written???

also got a constant sound glitch when playing single player sounded like the clicking you hear when flicking through menu options!

ive allready updated game to 1.2

ive been into task manager and shut down every non vital program

I know my processor does'nt meet the recommended spec but i played the demo with no probs at all

My system:-

Gigabyte motherboard Nforce 2 Chipset
AMD XP 3000+ CPU
2GIG Ram (PC3200 400MHZ)
Nvidia Gforce 7 7800GS 256MB(AGP)
Sound Blaster Audigy 2
Windows XP SP2

[imported_Whiskey]

If you haven't updated your SoundBlaster drivers recently, you might want to try that.