import -frame doesn't get the window contents

I first started seeing this in Ubuntu Jaunty (ImageMagick 6.4.5)
but I still see it when I compile the ImageMagick-6.5.3-10 tarball:

import -frame saves the window frame without the window contents.
Everything inside the window frame is just black.
It happens whether I save to a jpeg or png.

Plain import, without -frame, works fine.

Please let me know if there's a workaround -- I'm really missing
being able to make screenshots without needing to start gimp.

	...Akkana