Hey, I have an '09 quad, with my bootdisk on a raid0 SSD setup. (one of the ssd's is in the 2nd cd tray). When trying to install lion (should have known better...) I get the following message: Install Failed Mac OSX cannot be installed on your computer. Mac OS X can't be installed on the disk XXXX because a recovery system can't be created. Visit apple.com to learn more. Click restart to return to your previous version of Mac OS X... I click restart and the exact same thing happens... loops. WHAT DO I DO? I have timemachine on an internal HDD. How do I get Snow Leopard Back? How do I install Lion? Which should i do? What is the easiest method? thanks! r.