I'm using Vegas 4.0 BTW. I have basically two tracks in my project. Each consists of text which provides a caption for the video, and then there is an audio track. Text, video, and audio are actually on separate tracks, but there are two sets of these, one set above the other. I alternate back and forth between these two groups by cutting out either one or the other sets of tracks. After I render the video, the top tracks play fine, but when it plays the parts for the second set, the video has some sort of "ghosting" effect between the frames, like where each frame "bleeds" into the following. There's also like a stiping effect as well where it seems like each frame becomes interlaced with the following frame. This only happens on the second set of tracks. I've tried playing the rendered video on Windows Media Player with the same result. I can't seem to figure out what I'm doing wrong. Should I put all my editing on the same tracks?