I'm not sure if this is important or not, but thought I'd add just in case...
I just discovered the problem in Ubuntu Jaunty running Root Terminal, something I rarely do. I installed the jaunty-proposed package as described by Martin, and at first, it gave me a blank screen. Then, I noticed that if I resized the window, it would redraw and be OK. This only happens with the root terminal, run gksu; it seems as if using sudo from a terminal works OK, and using gksu from a terminal sometimes worked, I believe (when it didn't re-prompt for the password).
But, I remembered I had tried out a Window Rule using a Compiz Window Management plugin that resized gnome terminal windows. After disabling this rule, the Gnome terminal worked normally at all times.
I'm not sure if this is important or not, but thought I'd add just in case...
I just discovered the problem in Ubuntu Jaunty running Root Terminal, something I rarely do. I installed the jaunty-proposed package as described by Martin, and at first, it gave me a blank screen. Then, I noticed that if I resized the window, it would redraw and be OK. This only happens with the root terminal, run gksu; it seems as if using sudo from a terminal works OK, and using gksu from a terminal sometimes worked, I believe (when it didn't re-prompt for the password).
But, I remembered I had tried out a Window Rule using a Compiz Window Management plugin that resized gnome terminal windows. After disabling this rule, the Gnome terminal worked normally at all times.