Hello all.... I have an HP M9520F PC running Vista SP2 with RealTek audio. My Win systems sounds work fine but when I try to play videos online all I get from my browser is scratchy, muddy, unusable audio with barely any volume. Updated the drivers - no diff then tried using I.E. instead of my usual Firefox (both reasonably current). Music plays back just fine using I.E. but, like Firefox, you can't understand the spoken word... Need to do some training videos so I need to fix ASAP - any thoughts on what I need to do??