I've got an Al iMac 2.8 24", three months old. Has worked wonderfully. Working on an InDesign file today, I walked away from my screen for no more than 30 seconds with a document window left open. Came back and closed the window - no other windows open, revealed the standard Leopard 'cosmic' desktop picture behind. Looking closely, a faint image of the window I'd just closed (including type and images) was ghosted on the desktop pic. As silly things like this happen every now and again, I just re-started the Mac and carried on. At the end of the day, I have just looked at the screen and it's still there. I used Grab to capture a bit of the screen expecting to see the image on the grabbed portion and that maybe the background pic had corrupted somehow to pick up the image of the InDesign window. WRONG! Restarting again, on the blue bootup screen, it's still clearly visible, so the image is actually burned onto the screen!!! I can't believe it! Anyone else experienced this?