Geoff, Thanks for letting me know about this problem! 1. Does it work in PC version of that AV show? 2. Do you always see this problem with every run of this AV show? 3. Do I understand rightly that this error message occur not at the beginning, but later before a slide with first video clip object? Geoff, Gary, I'll try to find a reason of this problem. It seems to be an issue with ffmpeg library.