I've had this problem before, i don't know how i got around
it...but anywho. When i move an image in pan crop
(which is smaller than screen) there will be an invisible mask
when it moves out of it's original "boundry." I changed
the picture size to 720x480, which just made the image smaller,
and i had to zoom and was stuck with the same problem.
Sorry this is kind of a dumb question,
it kind of stumped me though. Thanks.