How do you change the Position of a Panel in 11.04?

I've tried the following instructions below and it does not work. A panel can be placed in one of four different locations on the desktop: the top, bottom, far left or far right of the desktop. The positions of the standard top and bottom panels are locked by default. To unlock these panels so that they may be relocated, right click on the panel and select Allow panel to be moved from the popup menu. Once unlocked, there are two ways to change the position of an Ubuntu GNOME Desktop panel. By far the easiest method is to simply click with the left hand mouse button on the panel you wish to relocate and drag it to the new location.