So basically the plan is to have SL running on my Mac the day it's released. To do this, I upgraded to Leopard this morning. However, having backed up all my data - I was ready for the erase-and-install option but this didn't come up at any point during the installation. 10.5 installed normally and my files are still here, but I did want a fresh install of 10.5! I've tried booting up the installation disc to re-install but the Mac just kicks it back out after playing with it for a few seconds in the drive. I need to know if there's a way to erase Leopard and reinstall it. My other option is to wait until Friday and perform the erase-and-install with SL (if that's possible). Any advice is appreciated.