Cannot sign into FaceTime or iMessage
We just bought a new iMac, downloaded Yosemite, and now FaceTime nor iMessage will sign in. With FaceTime, after typing in the password, my ID and password go black and that's it. With iMessage, all I get is a spinning wheel and it stops there. My ID works everywhere else.
Please help, this is very frustrating with a brand new machine where you expect everything to work out of the box...
iMac, OS X Yosemite (10.10.2)