The discs you borrowed won't work on this Mac.Im really new to this,I was told the only thing to do was to erase everything and put on a new copy,borrowed mac os x 10.4.8 from a freind and i erased everything on the notebook.rebooted the computer and thats what it told me.
Your Mac came with its system specific installer DVD's.So how do I know what copy to get that will work on this mac?
Which Mac are you trying to install OS X onto?I dont have the original disks that came with it.So the only option is to buy leapard, is that going to work or will i buy it and it tell me the same thing?
If you don't have the original installer discs for it I suggest that you go get Leopard. If your friend has an identical MacBook Pro the discs they loaned should work.macbook pro and it is a grey disk