I've had this problem too. Sound would work for a short while, and then just cut off. I went hunting for any clues to narrow down the problem. I found out that Vortex-based cards have trouble with most dual CPU systems. So if you have a dual CPU system and are having this problem, you don't have to wonder anymore. As for you who DON'T have dual CPU's and have the problem, all I can think of is that there's another incompatibility. I email'd several manufacturers about this and received no replies. It seems like they prefer to ignore their dissatisfied customers if the satisfied group outnumbers them. Oh well, suit themselves...I just won't buy another Vortex-based card.
