Let's see....
Alt-F4 will close iGuidance. (Don't know if there are any dialogs that come up).
Ctrl-Esc brings up the start menu
C to get the Control Panel
D D to highlight the Display icon. (The first D highlights Date & Time)
ENTER to open it.
From there you're kinda on your own, buecase I don't knw what you need to do.
Also, my instructions are going on the assumption that there's nothing else in the start menu that would respond to a C key, that your control panel icons are in alphabetical order and that there are only two icons in there that start with D.
Good luck, man.