I've been using Sony Vegas Movie Studio 11 fro a few years now, and I've loved it. Despite how I hate having to edit iPhone videos on the program, it far surpasses Windows Movie Maker. I recently, however, ran into a problem where I'll view a certain clip in the preview screen, but there are split-second blank screens that interrupt the video. Granted, there's probably four or five of these in the clip, but it's still highly annoying, and it seems to be random. I'll delete the clip, view it again, it will sometimes do the same thing, and other times, it will not. Not very reliable if you ask me. The blank screens are black and red. I tried looking it up, but I only see problems of the black or red screen covering the entire clip, but for me, I can view the video fine, but it will go blank a few times, very quickly, throughout the vid. Any help will be appreciated.