Anderton
It's also like other interface elements - you can just click+drag up on the bottom of the video track until it disappears.
+1 yep...I do that just about everyday. I load video, it plays on the another screen, but I don't want to see the video strip. I want to use the real estate to see all my instruments and other tracks.
Just click on the bottom of the track and drag it up until it is as small as it can be...then back to work! Good luck!