FWIW, The following came in this morning from one of my RSS feeds:


Thursday, October 30, 2008
(Intrepid) Watch out for this bug..

Using Brightness Function Key Combination Breaks Keyboard and Menus
On some laptops using the function key combination to change the
brightness can result in a loss of most keyboard control and an inability
to fully open menus.

If you lose keyboard/menu control do the following:
Ctrl-Alt-F1 - Brings you to a text console
Ctrl-Alt-F7 - Brings you back to your desktop

The previously quoted web site references the following URL for further