Hey I have a 2yr old Compaq 2.2 gig processor 1.5 gigs ram and 256 ram Radeon video card. When ever I try to play a video file on the hard-drive the processor usage shoots up to 100% and the video skips and chirps.. I have no problem with streaming video or audio files.. but it seems when I am playing a file the more sound and action there is on screen, the worse the lag time is.