When I upgraded to Jaguar and Panther, I just used the "Upgrade" option. I am planning to do the Clean Install this time... What happens to pre-installed software that came with the Mac (ie. Quicken, World Book, Marble Blast, etc)? (Obviously, I know they are deleted). Will these pre-installed programs on the Tiger disk or do I need to back-up the Quicken/World Book/Marble Blast, etc programs and reinstall?