Hmmm.
I'm obviously missing something.
I have managed to get a minimal retail install of Leo up and ready to upgrade, However:
1. If I run the SL installer, it gets as far as copying all the files to the hard drive and then reboots - back to square one.
2. If I run the terminal command to open the hidden installer.mkpg - I get an error message that SL cannot be installed on the drive running the OS.
Confused again