I appreciate the info I've gotten so far. Had trouble with my subscription, had to re-subscribe. Anyway. I guess the installation comes down to one of two choices. My hard drive is partitioned. On the smaller partition (10 GB) is 9.2.2, 10.1, and all applications. And 4.25 GB free. On the larger partition (30 GB) are all data filesphotos, letters, various, etc., no apps. About 25 GB free. So. Should I install Panther in the smaller partition over 10.1assuming the installer will let me? Or do I install Panther in the larger partition and therefore end up with 9.2.2 on one partition and 10.3 on the other? I would appreciate opinions. TIA, Ray