Under Fedora Core 4 support:
Me: Ok, now to restart the graphic mode you need to press and hold CTRL+ALT+Backspace.
C: I press them and nothing happens.
Me: No problem, take it slowly pres and hold CTRL, now without releasing that key press and hold ALT and finally press Backspace.
C: Where is Backspace?
Me: Its the key you use to move your cursor to the left and correct text you type, its above your "Enter" key and sometimes it has a left pointing arrow.
C: OH! that key, I thought it was the left arrow on the right side (also called... number 4)