Currently Being ModeratedSep 7, 2012 9:05 AM (in response to SteveAmaral)
What have you tried so far in terms of troubleshooting? Have you tried resetting the iPod with it still connected to your Mac? To do this, press and hold both the Select (Center) and Menu buttons together long enough for the Apple logo to appear.
Have you worked through all the troubleshooting suggestions here as well?