I have a new G5 dual 2.0 ghz with 1.5 gig ram, a ATI 64 mb card (2) 150 gig sata drives. I am also using a 23" cinema display.
My problem is... 9 times out of 10 when I push the power button it doesnt boot, I mean it will power up and begin to spin but then stops and there is also no boot sound. When it does decide to boot it works great as long as I am at it. If I leave and goes to sleep or screen saver comes on it gets totally hung, usually with a black screen as if sleeping and I can not bring it out. A few times I have ben working on it watching a video or just looking around and it has locked. I have to reboot. The software installed is Final Cut Express, Garage Band and the iStuff. Any suggestions would be greatly appreciated. Thank you! I received this mac off ebay, it is about 3 months old.