Comment 13 for bug 931473

Still working on this one. It seems gtk_menu_popup in gwd sends invalid redraw events for the popup menu. Probably the reason might be some invalid x and y root coordinates. It's probably set not to 0,0 but to the cursor position/popup appearance position. I think it's like that because the update rectangle's x and y coords sent to compiz are 2*(x,y) of the popup position. Will finish this tomorrow!