I recently tried turning on my iPod 15GB (3rd Generation), and the Apple logo comes up, then I heard a clicking noise (the hard drive I am presuming), and then the iPod shuts off and repeats the cycle. It never goes to the main menu or anything.

I tried running the diagnostics on it (the checksums, HD integrity, etc) and everything seems fine, but I still cannot get the darn thing working.

Any suggestions/advice? Thanks in advance for the help.