Two week old 1 TB time capsule, used to back up iMac, machine, MBP an iMac, and used to store a 400 gig iTunes library is giving me a "internal disc needs repair" message. Wifi is still working. The TC is not showing up in finder or disc utility, and Apple Care tells me I need to reformat the disc. Any other solution ? There is an Archive button there, will that help? Also, is it worth trying another time capsule or should I just forget this entirely ?