OS: 7 pro, 64bit WMP version: 12.0.7601.17514 Ok, I'm stumped. Windows Media Player crashes 90% of the time when I try to play a .avi file. (I say 90% because there are a few .avi files that it will sometimes play. I can't find any discernible difference between the files that it will play and the files that it won't play.) It WILL play movies from a dvd, and it will also play audio files. I've tried installing new codecs from http://www.free-codecs.com/FFDShow_download.htm but no luck. I'm on the verge of just trying to uninstall wmp and reinstall it.