gtk-window-decorator drawing error

[James N]

Binary package hint: compiz-gtk

I'm using the version of compiz that ships with Gutsy (upgraded from Feisty), and the gtk-window-decorator. I've got the wobbly window plugin with the maximize and move effects enabled, and a bunch of animations with the animations plugin, and I'm using the clearlooks gtk theme and whatever nvidia drivers ship with Gutsy. Whenever I have a window maximized, I occasionally see odd screen artifacts like the one in this picture (Firefox is shown, but it also happens with nautilus and gnome-terminal and gedit and presumably any other maximized window):

http://www.auburn.edu/~nylenjc/compiz-gtk.png

Moving the mouse back and forth repeatedly across the minimize/maximize/close buttons is a pretty reliable way to reproduce this problem, if only for a second. It also happens at other times - and usually hovering the mouse over a window button will make the decorator redraw the titlebar properly.

Let me know if I need to provide any debugging or configuration output, and what commands to use to do so or what files to attach.