Welcome! With the information given, it sounds like a codec problem.Go here:www.free-codecs.com and download the codec pack. Also there is a small utility called gspot available from www.snapfiles .com that will look at a file and tell you what you need to play it. Good luck, and let us know.
Edited by gunner, 18 October 2005 - 05:07 PM.
Spike's advice: Backup your data routinely.