problem with itunes 6

i just downloaded a music video, and when i try to play it, it just shows up as a gray screen with no music playing. the other videos that i put into itunes play fine. has anyone else had this problem or know something that i dont?

Update quicktime to 7.0.3

shouldn't it have already have done this when i installed itunes 6? where can i get this update?

http://www.apple.com/quicktime/download/mac.html

The latest download is 7.0.3... and that will fix the issue.

Edit: or software update like trpnmonkey said (duh on my part :dummy: )

Apple at the top left corner -> Software Update