Shane,
I got rid of the “blue cube” instance of Upwords View and made all the connections from the window’s main view (named Upwords View) – that did fix the problem. The only way I could get the mouseDown method to work was to make the view an instance of Upwords View – was that the right way to do that? I’m still a little confused about how mouse events are handled. I don’t have mouseDown, mouseDragged or mouseUp connected to anything in the nib, but they still work. I have some other questions about mouse events, but I 'll start a new thread for those. Thanks for all your help.