I've just setup Messages (iMessage) in my fresh Mountain Lion fresh install and by mistake entered a wrong AppleID. How can I delete this one or change it to the right one.
I've just setup Messages (iMessage) in my fresh Mountain Lion fresh install and by mistake entered a wrong AppleID. How can I delete this one or change it to the right one.
with messages open go to preferences. Either command comma or click messages in the top left corner and go to preferences. On the accounts page click account details and then click sign out.