This must be a really stupid problem. Cannot see what I am doing wrong.
Everything has gone really well, setting the bindings etc etc.
BUT I cannot bind the add and remove buttons to the Depts array controller.
Ctrl-Click from the button and move over to the array controller and no highlight - nothing!
Any reason the array controller may not be highlighting.
(Using Xcode 4.2.1 on Lion 10.7.2)
Thanks in advance