well i seemed to have fixed my problem for now... i used my old cd for motherboard that had my audio (realtek)
drivers on there. Old cd, old version of realtek, file version 2.1.5 :eek but its working ... compat mode vista
maybe try using older drivers (cd) with comp mode vista?
[edit]
driver version 5.10.0.6010 installed with audio codec ALC850
Reports nvidia audio controller(0059) ... maybe this could be the conflict with many of us....