I (stupidly ) wiped some random files and folders to 'cleanse' my 800 Mhz imac G4 before giving it to my Mother. The machine boots from either OS X & OS 9. I reinstalled the original OS X disk, but then it all went wrong... The imac does not recognise the disk drive, and occasionally recognises the external hard drive connected via firewire - although it disconnects randomly. Sometimes the imac will not start up, when it does it takes an age. OS 9 no longer appears on the machine and I can't install it. I've reset the power setting, but to no avail. I've booted up pressing no end of keys, but I still have an imac that is of no use to man nor beast. AT Computers in Gloucester very graciously said that they doubted the machine not recognising the disk and firewire drives were to do with anything that I wiped, but it seems too much of a coincidence... Can anybody help?