Photoscene:
I am not sure of the locale in which you are working. However, if you are in a Finder window, Command + A will select all the icons. If you click on the window it will deselect all. However, Command + Shift + A will open the Applications folder window in Finder, even if there were no Finder widows open. Command + Shift + H will open the Home folder. It is probably as easy to click on Finder window to deselect as to do a keyboard command if one was available and known.
Good luck.
cornelius
Message was edited by: cornelius