A couple weeks ago I tried installing Lion and found out that I had a bad hard drive on my Mini server that I had setup as a RAID 0. I just got the server back from Apple today as it was under warranty and now I'm trying to install OS X but I'm getting stuck at the gray screen with the pin wheel just spinning. After a while the apple turns into a cross out circle. Any ideas on what to do? I don't have a wired keyboard so I'm not sure if holding down 'C' during boot is even doing anything.