i just installed my new video card (visiontek HD 2600 xt - PCI-e) and all went well except now i have no sound output, input or anything. when i go into control panel the audio output device is listed as "ATI HD Audio rear output". there are no other options to select from anymore either. im thinking it my be my PSU as it is only 300w, but is it possible that everything else would work fine and power wouldnt be supplied to just one piece of hardware? actually...i have onboard sound come to think of it lol. so i really dont know what the prob could be.