How to change resolution in Gnome without the panel icons jumping around

The gnome panel has this annoying habit of letting loose of your panel icons when you change the screen resolution. (This happens when I step down the screen resolution to suite the projector, for example).

To prevent this, a nifty little application called 'pessulus' can be used to lock down the panels.

It can be installed in ubuntu as follows.

$ sudo apt-get install 'pessulus'

$ pessulus 

Lock down the panel as shown in the screenshot below.



No more messing up the panel icons when changing the screen resolution :)