Ipod Syncing to Contacts

[Bruin]

My 8gb Nano Sync'd my Contacts and calender with no problems but I got a new 80Gb Classic today and it'll Sync music and Videos with no problems but comes up with an error when trying Pics, Contacts and calenders. No help on the Apple site, Can anyone help me please.
Thanks in Advance.

 

[Bruin]

The error I get from ITunes when the Sync fails is "Error -50" if that helps