The good news: I have now a working MediaPortal TV Server on my W2K8 x64 with my analog tv card (PVR-150). The bad news: I don't know, if I can reproduce it, because I hacked quite a bit. I made some things from here and I exported many registry keys from my vista x64 and imported them to w2k8. The channel scan in mediaportal worked a little bit better, but there were some exceptions around SetupTeletext(). Then I downloaded the source code of the TvEngine. In the TvCardAnalog.cs of the TVLibrary project I deactivated teletext by returning at the beginning of the FindVBIPin method. Compiled and installed, then the channel scan worked, but I have no channel names. I think they will be getted from teletext. But showing and recording tv works, also with a network client. If someone is interested in my exported registry keys, I can upload them. There are many keys, I think not all will be used. Next step is to find out which keys are necessary and whats going wrong with teletext. Greetings wima