I am using a Dell my sister loaned me. The tag says AMD 64 Athlon and it has Windows XP Media Center Edition 2005. When I turn it on the monitor says it is in power saver mode. It says to move mouse or hit any key, but nothing happens. I tried a different monitor and get the same message. Isn't there some way to use keyboard to get it out of this mode? I tried F8 key. I already dusted it out and looked around turned it off and on several times. Cable looks fine. Please help!