Code review comment for lp:~vanvugt/nux/fix-769957-natty

Using CCSM, toggle the Negative or Color filter plugins. Most of the time, each toggle will cause more corruption in the panel. Also the panel shadow gets darker due to the duplicate windows.

You can also check for the leak in a terminal using this:

for i in `xwininfo -root -children | awk '/^ *0x/ {print $1}'`; do
 xwininfo -id $i -all | grep '"panel"'
done