Mike (Williams)... Win XP Home, started w/ 9 and upgraded to 10; still erroring; not playing any audio or video files no matter what format. I've tried all the tricks you've suggested last few months (have FFD Show, DivX and have downloaded many codecs onto this machine). gSpot returns "n.a." on every single file - audio, video... multiple formats. Sherlock won't even run - it just crashes when I try to install. Got an answer for this one? I'm all ears. Thanks.