Clicking on an item always switches from Select to Connector

[eddyq]

I have made an arrow. Now I want to put a label on the arrow to overlay the line. So I click on Select and click on the connecting line. But that always switches to Connector and wants to put another arrow in. I don't see any way around that. What could I be doing wrong?

Scenario:

Make a box.
Make another box.
Draw a connector between the boxes.
Draw another connector to a 3rd box.
Click on Select.
Double Click on the 2nd connector in an attempt to overlay "Yes".

It will switch from the Select to Connector and insert a new connector.