Hi guys, Several recurring problems prompted me to reinstall Mac OS X Leopard 10.5. Beforehand, I had made a copy/clone of my entire Macintosh HD onto an external hard drive. After the reinstallation, I selectively copied specific folders back to my fresh installation. On my previous installation, I have had Time Machine running for several months. Trouble is, when I connect the external hard drive which holds the Time Machine backups, the Mac does not recognize it. I wish to have my new reinstalled Mac back up to this same Time Machine backup. I have copied all of my documents and applications back onto my new installation. I wish to browse previous backups of the files I had made. Correct me if I am wrong, but I believe if I choose my old Time Machine hard drive as my Time Machine backup disk in my new installation, Time Machine simply starts an entirely new backup and ignores the old Time Machine backups made from my previous installation. I would appreciate any help you guys could provide. Many thanks.