okay so i bought an old power mac g4 off ebay for about $40, the description said it had a 40gb hard drive, 1gb ram, dvd etc.. with panther preinstalled. I got the mac and all was good, except it was a 4gb hard drive not a 40gb. the seller apologized and sent a 80gb hard drive in replacement for the 4gb. he said panther was preinstalled on the 80gb hard drive but it wasnt. when i have this hard drive in the computer a flashing finder/question mark icon comes up and it does not boot. i have a copy of osx tiger and i put that in the dvd drive (ive tried leopard too) but for some reason the machine itself, no matter what hard drive, will never boot from the dvd or cd. i try holding c, or the cmd key, but nothing. How can i format this hard drive? or better yet fix it, and if thats not possible. is there a way of transferring all the data (including the OS) from the 4gb hard drive to the 80gb one? Also i forgot to add, that i have a old windows machine, and when i put the 80gb hard drive in that and try to boot from that, it says theres no operating system installed, in addition to that, ive tried booting my xp disc so that i could format the hard drive, but i always get a random error and the disc cant boot. its not the disc or the drive, because that works fine with the 4gb hard drive with panther and the other original hard drive from my windows machine. so if anyone could help me, thatd be great. thanks!