Oh thanks for your reply. I check the cable connector and it's connected directly to a power supply connector...I sent a message to Ubi and ATI about this and Ubi said that it was because Raven Shield has a performance issue with the onboard sound. Unreal II I read just has performance problems period and since Return To Castle Wolfenstein runs fine than I think this is software based. I really wish ATI had an explanation for this, but they said there working on it. I'll just have to wait I guess....last time I buy top of the line video cards....Thanks again for you input.