I have around 10 iMac g3's i bought off ebay. They work fine except they have completely empty HD's. I have both os 9 and os 10 installation disks but when going to install them, i get to the stage where u pick a "destination disk" or whatever it says that there is no HD present it. I assume this is becuase the hard drives need to be re-formatted. I have tried doing this but im not entierly sure how. Could somebody give me and idiots guide step by step in how to install and reformat on a slot loading imac g3 =] Thanks.