My installation of Leopard on my machines (I bought a Family Pack at the Regent Street shop) coincided with hard drive problems on both my iMac and my MacBook. I chose the Upgrade option for the installation on the iMac, and that seemed to work fine; but the MacBook would take only an Erase and Instal, for some reason. And, although I keep the files synchronised between iMac and MacBook, it was only once I had completed the installation that I remembered some files that I had not updated ...

However, then I had problems with the Keychain and RapidWeaver: the application would try to access the Keychain (after presenting the Allow/Deny alert) and would then take an age to complete the startup process, with the file loading grinding really slowly. It would take a long time for Force Quit to arrive on the scene and then the whole iMac would limp until I rebooted it. After taking advice on the RapidWeaver Forum, I deleted my RapidWeaver references in Keychain and ran Onyx to clean up the links etc ... Then it worked fine. But Time Machine was not working as I had hoped. Its backups seemed to be complete ones and it ran out of disk space quickly. So I made 3 backups of all my stuff and reinstalled Leopard using Erase and Install and all works beautifully.

I am really pleased with Leopard now; my advice to all is to Erase and Install after you have backed up ALL your current files. And I now have a 1TB Iomega external drive to take Time Machine (bought from Cancom in Cambridge).

Chris