Hello folks. OK here's the situation, any help will be greatly appreciated. Installed Lion DP and because it's buggy etc... I wish to downgrade to SL, clean install. I know how to do that but here's the problem: Lion won't find my SL (or even Leopard) DVD when I insert it. It goes on and on for a while and then simply ejects it. Tried the same on startup, holding C, ejects it. My DVD drive is fine, it recognizes all CDs and DVDs but Leopard and SL... Tried Disk Utility. All options under the "erase" tab are unclickable... So I'm stuck with Lion at the moment. Any insight? Thanks.