I have this same problem in 11.04 Ubuntu using gnome with the xfce- terminal. I also have a number of other related screen problems when xfce-terminal is on the screen.
1) Resizing the terminal draws a black box on the top of the screen. 2) Changing themes causes xfce-terminal to redraw and create a black box at the top of the screen and/or screen garbage. 3) gnome-panel, when not in autohide, goes black when xfce-terminal is maximized. All of these are related to redrawing the xfce-terminal in 11.04. I'm also using the Nvidia driver. I think this is a xfce-terminal bug not a panel bug. ** Package changed: xfce4-panel (Ubuntu) => xfce4-terminal (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/777606 Title: Panel turns black when maximizing terminal -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs