Hi all, I have just purchased what is either a G4 flat panel 700 or 800 (can't tell which yet*) off of eBay, that won't boot up*. It's getting the multi language kernel panic message at the grey screen. So far I have tried: Trying a different keyboard. Taking out the Kingston memory that has been added (Doing this causes it not to turn on at all) Diskwarrior. Disk First Aid (shows the HD as being fine) I have installed a fresh install of Leopard onto the HD via Firewire which went on fine, and would even boot up using its HD in target mode on another mac, which says to me the HD and system are fine, but it won't boot on it's own. Any ideas guys??