sound cutting out after a short period of time (v0.86)

[D3str0y3r12]

this issue has started with the 0.86 patch and i havent seen it before, i start up pr normally and after a short time after i log in the sound cuts out, when i change my settings the sound comes back for a short time and then goes again :S

i really dont know what to do i've uninstalled bf2 and pr and reinstalled it all and still doesnt work. has anyone else had this problem?

edit : uninstalled CA and it seemed to be resolved but the sound cut out after loading a map

please help!