Mov attachments not playing

I have the attachments as files hack installed and the attachment viewer hack. both work great. I uploaded some .mov files today though and when I click on the attachment, it won't play. I just get a lilttle dead image looking screen. If I choose "save target as" and download it to the hard drive, then it plays just fine. Anybody have any idea what I can do to solve this?

[Admin]

You'll need to edit attachment.php and add a right header() call for .mov files... I'm not sure what the type of .mov needs to be, I'll see if I can find out.