I just reformatted/upgraded to windows 7, everything is running smooth but my audio. I used UNIBLUE to install all the drivers, and check up on ones I need. All are installed but my audio still isnt working. There is no more red X in the volume tray icon. Everything seems as if its working in order but no sound is coming out. Power cord is in, audio is in the right spot(green). Any help on what I should try?