Very strange problem. I go to http://www.microsoft.com/windows/windows-media-center/launch/EasyLaunch-Netflix.aspx to get the NetFlix add in for Media Center, already installed it on a different machine running Windows 7 with no problem. I get all the normal warning messages, Media Center finally launches, then nothing, it just sits there waiting for me to do something. No error messages, no complaints. On the other machine I immediately get a log in screen for NetFlix and everything works fine. The only real difference between the machines is that this one is a laptop with Windows pre-installed and the machine that works is one I built myself.
Don't even know where to start looking and don't seem to find anyone else with a similar problem.