I also have this problem... I can reproduce this by placing a window on top of the gnome-terminal (covering a small area of it) and changing the virtual desktop... When I come back to the desktop the gnome-terminal is black, i have to force the redraw (by changing tab, moving, ...)
I'm using transparency in the gnome-terminal and composite is disabled. This occurs with both fglrx and radeon drivers (ATI 9600). -- [Feisty] gnome-terminal doesn't always redraw after switching desktops https://launchpad.net/bugs/92405 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs