There is no such version of XP. While MCE is reported to be built on XP Pro, I'd stick to the name of the OS Dell installed. The error from memory is found on google but I recall it to happen when I installed IE 7. So I don't do that anymore.
To recover I used system restore.
Dell Dimension 8400
XP Pro MCE SP2
It's been a year since started up Media Center & it used to work just fine. It's 2005 ed. When I start the program I immediately get message "Your video card or drivers are not compatible with Media Center". I click "OK" and the program opens. Click "Live TV" & get message "VIDEO ERROR Files needed to display video are not installed or not working correctly. Please restart Media Canter and/or restart computer". Doesn't help. Running cable from TV cable box to input jack on back of tower as used to do. I can't get live TV. The Reinstallation DVD says "This DVD is not for reinstallation of programs or drivers".
How do I fix?