Hi supergeeks. I have a Dual Proc. G4 about 3 mo. old (OSX 10.2.3) and just attached a new Viewsonic 175B flat screen monitor at its preferred 85 Mhz. Works great. Only thing is, my machine won't shut down anymore. I turn it off or put it to sleep, it revs down (however you say it), and then, boom, it's like I just woke it up (after I try to put it to sleep) or it immediately reboots (if I go to Shut Down). Other monitors don't do this. Any ideas for me with my "great" new monitor? I talked to Apple to figure out it was the monitor that was the problem, and we did the zapping of the PRAM or whatever.