I recently had to replace the hard drive on my intel Mac and had someone install software on it. Unfortunately, they used software not licensed to me. I've uninstalled the software and reinstalled my licensed copies, except the OS. I own a license for tiger, but not for the leopard that's currently installed. Can I purchase the license for leopard and be right with apple (get updates, upgrade to snow leopard, etc.)? Or do I have to purchase leopard and install that copy? If this is the wrong forum for this question, please suggest the correct board. Thanks in advance.