It is not the only movie. There are few like these that I have noticed. It is a problem with one of the codecs. The movies run perfect when I convert then to mpg, 3gp or mp4. originally they are avi. also, converting to wmv doesn't solve the problem. so, it is a problem with one of the avi codecs, I am guessing. It happened to me before too, when I was using K-Lite. Few days ago I clean installed XP and installed K-Lite again. And the same problem. Before I never suspected K-Lite. But, now, although I uninstalled K-Lite, the problem is not going away. And currently I am using VLC.