I have a user with a new laptop, XP Pro, Office 2K3, and the latest version of Windows Media Player. This user has a power point presentation that contain links to some .avi files, and when he clicks on any of the links (within the slide show mode) to play the .avi files, he gets the message "There is no driver installed on your system". Then after he clicks "ok" the file plays anyway. If I run the .avi file itself by clicking on it directly, it runs without the error message. It seems to only happen when he clicks the link. Any suggestions??