This is the second time today. I open up my G4 (dual 1.25 MDD, 10.3.4) to look at something, and it crashes. I get the darkened screen saying I must hold down the power button... blah blah. I used to open a few times a week to clean it or to just check a few things while it was on, and it never crashed. But all of a sudden (about 4 or 5 days ago) it crashes if I open it while its on. I'm thouroughly confused, and a bit worried. Anyone know whats going on? (I repaired permissions about a week ago) I got a 17" Apple LCD as a gift about 2 weeks ago, and it works perfectly fine. However, I notice if I leave it off or put it to sleep for more than about 15 minutes, I get a strange high pitched ring when I turn it back on/wake it up. Anyone else have this problem or know what it is? Thanks in advance.