Using the "grid" plugin to place the root window causes glitching
I'm using mate, and when I click on my background image (the root window) and then press KP_4 or any other position key the display glitches and flashes. (I know, the obvious work-around is not to do that, but sometimes it happens by accident.)
It is still usable enough to log out and back in, but that is the only fix. Even reloading compiz (compiz --reload) does not solve the problem.
What can I try?
Is there an easy way for grid to ignore the root window?
-Eric