Hello all. I have two copies of leopard: one dvd that was purchased separately and a two-piece (I'm assuming cds) that came with my new mac mini intel core 2 duo. The two-cd set is not just an upgrade installation and should have all of Leopard on it. However, I gave this to Carla so that she could install Leopard on her macbook intel core 2 duo. We chose "install macos10 and bundled software" and restarted. When the installer came up, we started voiceover, made sure english was selected, and pressed continue. We then got an alert saying the software could not be installed on this computer. The macbook as a gb of memory so that's not the problem. We also had a sighted person look at the cd jacket and it says nothing about being only for mac minis. If the problem is with the installation media I can trade and give her my dvd instead but can anybody explain why this would be the problem or tell us what else might be causing this. Again, I'm quite sure the set that came with my mac mini is not just an upgrae set. Thanks for any help. Cheryl "Where your treasure is, there will your heart be also."