Hi everyone. I was about to shut down my iMac when I saw this message pop up on my screen. "This computer's local hostname '---- iMac.local' is already in use on this network. The name has been changed to.."........-iMac-2.local'" Why would this happen? I did recently upgrade my HDD to a 3TB one and cloned my original drive. Would this be the reason? Thanks for your help.