HALO 3 Zune preloaded content problem...NEED HELP

Ok, so I have the Halo 3 zune. It was synced onto my laptop until now. So when i synced it to my Desktop all of my preloaded halo 3 things got deleted. Is there anyway to get them back or should I just call Microsoft?

even though this has to do with microsoft (and halo 3 kind of) i don't think u will get many answers on the 360 board. try general hardware discussion

EDIT: ohh, and i would call ms