I have a set of files contaning jpeg frames and want to play them as one long video. Not seeing an easy way to play these files seamlessly with the existing filters, I wrote my own filter that reads the files and sends the jpeg data through the mjpeg decoder which in turn sends it to the video renderer. I have used GraphEdit to do the basic testing and I can get the three filters connected. When I press 'run' the filters all run but the video does not get painted in the video window- now here's the strange part- The video will get painted if I move he Video Window around the screen while the graph is playing. If I stop moving the window, the video stops being painted. If I start moving the window again, the video picks up at the appropriate spot.

Any insights would be appreciated!
Thanks in advance,