Apple Remote Desktop 2.0 crashes when you click scanner

I've been battling an annoying problem with Apple Remote Desktop (ARD) where it crashes when you click on the "scanner" icon to run a scan of the network. Several searches had been unproductive until I found this article in the knowledgebase today. The thing is that even though it has "crashes" in the title a search for crash and the ARD product won't show it. Once you click scanner you have just a second when the program opens to move it back to "master list"... but that is a tiresome work around.

So the hint says you can only have 29 network ports in your active configurations. This means you can't have more than 5 "locations" set in network preferences because there are some ports (internal modem) that even if you don't use you can't delete.