I Jailbroke my iPad (with spirit), but after a few days I wanted to restore it again.
After I restored it, iTunes told me it will be available in 8 or so seconds. After that time passed, my iPad told me to connect to iTunes. iTunes could find my iPad, but I could not do anything with it, see screenshot. I tried restoring from both DFU mode and Restore mode a couple of times, but had the same problem.
a MacBook Pro running 10.5.8
iPad 64 GB WiFi