I have a 1st gen Zune, and the "Zune" splash screen freezes when starting up, also there appears to be a clicking coming from the hard drive. After several minutes it goes to an Error 5 "Contact Customer Support" screen, where again it locks and I cannot even turn the unit off. I have reset the unit, and still does the same thing. This evening, I am going to try to restore the Zune device software. My question to the community is, has anyone else heard or experienced this? I feel that the hard drive is pretty much screwed, I have no receipt for the unit. Has anyone dealt with Microsoft CS? How difficult are they about replacing a defective unit?