I have a new problem. I'm assuming it's a software problem. Media 100 has suddenly started to have playback problems when I build comps using Boris. It will play fine for a couple of seconds and then begin to drop frames and hang. What could be causing this. I've ran all of my disk repair programs and they found nothing.
Do you have a wrong rendering directory (like your internal HD) set for rendering? Or maybe a wrong codec with a data rate too high for your material?
Or your media drive could be nearly full, which usually slows down the drive speeds, causing playback problems.