I have been noticing this problem too for the last few weeks. it seams to be a new issue.

The video will not show up in the "My Videos" box but if you play the video by pushing the play button by the video in the "Internet Videos" side after downloading it will play. But if you exit the program and restart it the video is gone.

I starting to do some testing today and found that when Video Center downloads files they come marked hidden I assume this is to keep the file from appearing in the "My Videos" box before the download is complete. After the download completes the program is supposed to remove the hidden file marker. Some of the videos I get are mp4 and others are avi formatted. the mp4 files work, the avi files do not. For some reason the program is not removing the hidden file marker from avi files. When Video Center starts up it cleans house and deletes hidden files in its directories assuming they are aborted downloads. I would think the program should do this when unloading (or at least during loading AND unloading) but what do I know.

I checked here to see if anyone had the same problem and a solution before I try to remove the program, clean off the directories, and reload. I am not confidant this will prove to be a solution but its worth a try. Has anyone found a better solution.