So i installed Snow Leopard on day one and like an idiot, when the install worked I cleared out time machine to do a fresh backup. Now, my trackpad on my MBP is not right (like a lot of people on here), OSX is laggy sometimes and safari seems to crash often. I just want to go back to Leopard where everything was perfect. When I put in the leopard (retail disc) and click the icon to install it gets stuck on a white screen. When I have the disc in and reboot holding C, same thing. Holding option, selecting the cd is freezes. I just want Leopard back until about 10.6.3. I know I shouldn't have deleted my time machine backups so don't bother.