I upgraded from OS X 10.5 to the WWDC '09 Developer Build of 10.6, but find it too buggy for my everyday use. I wanted to know what is the best way to go back to 10.5. I want to essentially "downgrade" as I do not have time to go a full installation of 10.5. Do I just boot from my 10.5 disc and install it as if I was doing it as an upgrade? Thanks in advance.