My parents called me from home today rather upset. There was an unexplained power outage today. Their 733Mhz Quicksilver PowerMac G4 was in sleep mode and now it won't turn on. When they push the power button the light comes on, but there is no startup sound, and the internals (fan, HD) don't turn on. What's wrong with the machine?!? It's just about three years old now, and has never had any problems since the day it was pulled out of it's box. Thanks in advance for your help!