When I use CloneDVD mobile (at home) to create an mp4 for iTunes the audio is fine, but the video is always basically a green screen with lines. When I import it into iTunes an actual frame from the video is shown as an index (as it should), but the video is still garbage. It appears to work correctly on my work laptop, so I'm guessing my home PC is missing something vital (though it will play videos purchased from iTunes). Any ideas? Thanks!