Hi, In the last few days on my Vista Ultimate 64bit system I'm getting the following error: C00D11B1 I can play .mp3 files fine but recieving specific errors with .avi, .wmv. The error message gives me the following url: http://www.microsoft.com/windows/wi...&id=C00D11B1&contextid=84&originalid=80004005 My system used to be able to play these .avi without any problem. I have no idea what the issue is related too. If any of you can hlep me at all I'd be extremerly generous! Thanks for your time, Dan