I am using Ubuntu 10.10 with vlc 1.1.4 and totem 2.32.0.
I have seen the following, strange behaviour several times: When I open a video in VLC it is gray:

As soon as I open the same video in totem, the video opened in VLC gets colored: edit: It even hasn't to be the same video. It can be any video file that I open with Totem.

Why is this happening? How can I solve this problem?