I bought my macbook pro just over a year ago with 10.4 installed. When leopard came out i purchased the CD with a friend and we both installed it fine. Since then i have been running leopard with no problem. However, the other day i decided i wanted to reinstall leopard and start fresh. I am installing tiger as i type this and my issue is.. The person i bought leopard with is out of town and i have been unable to contact him. I have my entire old system backed up to an external hard-drive, but need leopard to restore it. Since i am unable to get in contact with him, is there any other option i have for upgrading to leopard? Thanks.