Hello People, New to the forum and a Mac newbie and my father has just bought a secondhand G4 Quicksilver, so you might be hearing alot from me. We had it up and running and everything was fine, until it froze and i held the Power Button in for several seconds to restart it. Now we can't get it to start up again and all that happens when i press the power button is three 'beeps' and the power button flashes continuosly. The fans are going etc. however no video or signal is going to the monitor. Any Ideas would be much apriciated??