i get an error here is most of the code where it starts

my computer specs are definately good enough for the game its a new computer with 2gigs ram 288gb harddrive intelcore2processor 256graphics memory im running vista might that be the problem it sounds like an aoudio error btw

the error is only when i start up multiplayer and it is really annoying that i cant play


--- ambient sound initialization ---
Sound memory manager started
Loading dll file ui.
Failed to load dll, looking for qvm.
Loading vm file vm/ui.qvm.
Failed.
Shutting down OpenGL subsystem
VM_Create on UI failed