Turned it on about 20 minutes ago, let it stay at the menu and left the house for a few minutes, came back and the artifact / lines across the screen were on again, completely frozen up. (But no yellow/red lights - ps3 still has the green light and is able to eject the disc.)
Will backing up to a USB hard drive also save all the games and downloadbale content I bought on the store? (We're talking at least $500 worth of stuff! - That includes all my PSP games as well though.)
You will be able to redownload all of your stuff, even with a new PS3, so no worries there. It's just a pain in the arse to have to reDL it.