I built my computer last year and it ran fine with XP with everything working until recently I got a virus forcing me to reformat my hard drive. After doing so, I installed Vista since I couldn't find my XP disc. I have gotten everything to work fine except my sound. When speakers or headphones are plugged in I can go to my Realtek HD Audio Manager which tells me I have sound output from my device but no sound output from Windows sounds AIM Google Chrome or any other applications. The Speakers I'm using are harman/kardon HK195 stereo speakers. I have my computer set to side stereo speakers and my sound card is a Creative X-Fi soundblaster (or something of the sort) I have the most recent Vista drivers installed and I can't think of what the problem is, any help would be appreciated