Can't drag movies into iTunes v8

or should I rather say, I can drag 'em, but the do not land there.

When dragging a .avi-movie in Vista, the thumbnail is shown, but the LIBRARY tab does not highlight, when dragging the movie over it (as it is, when dragging an MP3 there) Dropping the file subsequently does nothing. The iPod manual says iTunes supports all files supported in Quicktime, and the file in question plays fine in Quicktime...


Any idea would be appreciated.