Rename Mac?
I gave my old iMac to my wife, and bought a new one. Both are running ML. I migrated the old one. Now both iMacs have the same name (Joe's iMac). That seems to be confusing the Time Capsule: Joe's iMac.sparsebundle is listed there twice. And TM keeps doing complete backups. So I need to rename one of them. How can I rename an iMac?
iMac, OS X Mountain Lion (10.8.3)