Hi, I'm in desperate need of help. My new imac G5 just suppenly stopped. I restarted my computer like any other time and when i turned it back on, it comes up with a grey screen with a icon of a blue world, now it just switched to a folder that flashes the little "Finder Face" icon then a question mark "?". Now after 5 mins it starts up.... Can someone help me, is this the equivilent of windows blue screen of death?!?! Thank you.