More interesting info on this issue: I just emailed them a relatively small AVI file, and it came up properly in Mail.app in what sounds like a QT-like player within Mail. So, it appears Quicktime might be fine. Is there a plug-in file that could be corrupt or something? Is there a video preference that might need reseting and where/how do you do it if so? Thanks in advance. -- David R. Boag, DDS spikedds at bellsouth.net http://www.southatlantadental.com/