Hi, I have a problem, My boss gave me his macbook with a bad hard drive and bought a new macbook but he lost the original disks for the one he gave me, i tried installing os x 10.5.2 that came with the new one and was able to format and partition the new HD that i puershased for it but then i get the error message saying it cannot be install on this computer. It has 2 512 ram of memory but I dont know how fast of processor or if its intel. How do i find out what version of OS i need. or can I put my hard drive in his mac run setup then install the HD in mine would it work? Please anyone!