I recently installed Garmin Express v4.0.11.0 so I could update my maps. Without my Garmin even plugged into the USB I was getting the Spinning Beach Ball on my mac constantly. Almost every action caused the application to freeze and bring the spinning beach ball. The beach ball eventually goes away but only be followed up by a new one. I eventually got my maps to update but it was a frustrating experience.
Thinking that it was my computer, I uninstalled this release and installed a prior version 3.2.30.0. This release worked perfect as I had remembered with no issues. As soon as I updated the problems continued.
I also have to say that I enjoyed the prior release experience and features better. There seemed to be more options. I'm hopping these issues will go away and get fixed. Let me know if you need more information from my end.