Finally I can tether my BlackBerry to my Mac and get a connection. Here is the how to.
In advanced setup, under bluetooth Tab choose the following
I have heard reported that if you want to do this via a USB cable, you must go to http://www.vzam.net/ and download the Verizon Access Manager for pairing the Mac with the Motorola Q. Haven’t tried it yet, but I think I will give it a whirl in the upcoming days.