Hi all, Just got a MacBook Air 2009 (first gen) for $350. It was running Snow Leopard, but I figured I couldn't live without iCloud so I had to upgrade to Mountain Lion. At first, the installation was going smoothly until the very last 10 minutes, there was an error and my MBA kept restarting. I waited till the next day to see if I can find any solution on Google. Turns out, there is no startup disk in my MBA anymore so I have no drive to install the OS on. Is this a common problem? How do I fix it? I tried Lion Recovery and the hard drive appears to be just fine (in Disk Utility). Thanks!