I hooked up the iBook to my other computer using Target Disk Mode. The firewire symbol was perfectly formed and clear, no problems with the display. Ran disk utility, everything is fine. Ejected from firewire mode. Restarted. Got as far as the log on screen and then the display went all wonky. There's a dark bar that keeps traveling down the screen, kind of like a TV with a horizontal hold problem. There are lots of lines in various shades of blue down the screen. I feel as if this has to be a software problem given that, under certain circumstances, the screen is fine. I do seem to recall reading things about the iBooks a and projectors but can't remember them. Argh. BTW, tried resetting the pram. Tried to boot in open firmware to rest the pram that way. No screen. Meg -- 700 MHz iBook (June 02) OS X 10.2.4 384 meg RAM