Can't close Control Panel while in full screen mode

I am running Vine Viewer 3.0 on OS X 10.5.1. When VNC’ed in to a Linux machine and in full screen mode on the Mac, I am unable to close the little control panel box. The Close (X) button seems to do nothing. When I exit from full screen mode, the box goes away.

This is an annoyance when I am working in a remote IDE were I need the all the screen real estate. How can I close this box while in full screen mode?

Thanks,
Don

There does seem to be a problem closing using the [X].

You can toggle that window with Cmd-Option-~.