I am the proud owner of A 24" iMac that I bought about 2 weeks ago from an Apple store in the UK (Trafford Centre, Manchester.) Something HORRID has just happened. I think it was because I tried to install iSnip, a nice little clipboard manager that runs fine on my PowerBook. Anyway, now when I try and turn the iMac on, I get NOTHING, and I mean NOTHING except the white power indicator light on the bottom right, which doesn't even pulse. It just sits there and glares at me. Please don't suggest starting up in the Cmd-Alt-Shft-P-R-whatever mode, because I have a wireless keyboard, which seemed like a good idea at the time, but won't talk to my iMac at all now! DO I really have to start all over again by sticking my CD into the machine and turning it on? Will I lose everything on the machine if I do this?