I recently installed a Samsung Spinpoint 160GB hard drive into my wife's 12" iBook. I don't remember the speed but it is a later version. It has 512mb of RAM. When trying to install the OS the drive does not appear as a choice. I put it into target mode and the drive appears on the other computer. I was able to use disk utility with it in target mode to format and check for any problems. No problems were reported. I also installed the OS with target mode. When I try to boot the iBook the drive still does not appear and I get the ? folder. Any ideas as to why it will appear as a target drive but not on it's own?