Hi there, Trying to help a friend who has a iMac OS X v10.5 "Leopard". Started to have really slow load up times, now takes 13 mintues to load up and when in it takes minutes after each mouse click to do anything. I have tried all the troubleshooting I have read about. The hd passes hardware test but I get errors after doing fsck. Not able to fix disk errors. He has never done a backup. If I am lucky enough to be able to use time machine to back up his stuff would I be able to use the original install disk to do a fresh install and then get his files back? If there is a problem with the files and time machine saves everything then is it possible that the problem will be transfered back to the new install? Thank you in advance for any help you might be able to offer me.