I recently installed a new graphics card (GeForce 8400 GS, not really "new" but new to me) and now my sound lags and skips (almost sounds like needle skipping on a record in a metal cave.) I noticed that the graphics card installed some kind of HD sound drivers for some reason, so I uninstalled them, but the problem persists. The only other thing I did was update my BIOS, I don't know if that would have affected anything. Any help would be appreciated!