I have a Dell Latitude D630 w/XP SP3 DVD playback on this machine was originally smooth as one would expect with PotPlayer & other playback software. Then... I installed Foobar2000 and I think around that time DVD playback got real choppy - almost as if data transfer from the laptop drive is interfering with the playback software. Both video and audio are affected. Foobar is not running when I try DVD's. DirectX tests don't yield anything unusual so I'd like to ask if there is a way to show what audio/video filters are active and/or being used at any given time in XP? Might this be what is called a "graph"?