Sync Between 2 Computers, Issue

Ok, since I bought the phone a few weeks ago, I've always synced between my laptop for contacts, calander, etc, and my desktop for music. Today, I synced with the laptop and went fine, then to the desktop and got the message cannot read contents.

What's the deal? What should I do? I started doing the restore and then there was another message.

 

odd. I unplugged, shut down itunes, and then plugged the phone back in. Syncing fine now.