Comment 35 for bug 314038

I am using Kubuntu Jaunty Beta with uptodate packages. I have the same bug, bug may be another which I am not sure how related it is. So I am posting here.
The bug is, that apart from having a separated video interface, the video is only displayed for about a second. Then I only here the sound. I can see the video, when I move the windows. So may be this is another bug, related to KWIN, but I am not sure. Thats why I ask here, if some experiences the same on Ubuntu or if this is only Kubuntu-related.