Hi, I've just installed ESS Beta 2, and (unlike Beta 1b) my XBox 360 can detect my PC and then successfully connect to it. In Windows Vista Media Center on the 360, everything seems to work fine. I can watch live TV, play MP3's, and view pictures. But when I try and play a video (any video) from the Video Library, I get a message saying 'Video Error - Check codecs are installed properly and restart media center'. When I go into Media Center on the PC, the same videos play fine. I'm running ESS Beta 2 in Interactive Mode, and I've clicked Allow/Remember for any pop-ups. My OS is Vista Ultimate 32-Bit, by the way. If I disable ESS Beta 2 completely (from within the GUI), the problem still persists. If I uninstall ESS Beta 2, the problem disappears. FWIW, I also have this exact same problem with Kaspersky Internet Security 7, but interestingly not with ZoneAlarm Security Suite 7.1 (Vista version). Any help appreciated. Steve.