Since skype has the video-option we had no real problems, other then sometimes some blurry video. A few weeks ago i have beta 2.6 installed. No real video-problem, we could see each-other. This weekend my friend installed the beta. I called him, he could not see me, there was not even a black screen, he just could not see I was sending video. I saw him however, and thought the video was much better.
We tried the other way around, He called, and I could not see him, however he could see me this time (and also thougt quality was improved). At the end I re-installed 2.5. I called, he couldn't see me. He called me, we both could see eachother. Imagequality was poorer however.
So it seems that when using beta 2.6 the incoming video is missing. The caller however sees the other, and has also the thumbnail-video from his own video. Also there is no error message.