When opening the properties of a connection and either clicking cancel or ok royalts becomes unresponsive. Even if you do not make any changes, it's like it has to re-load the document. The application is not writing anything to windows event viewer or any log file I know of.
10 documents open with about 4400 connections/task/etc in them. We also use document icons as well. I know that was a bug in a previous version with the application being slow.
Thanks for the feedback. I changed the code to not refresh the tree if the properties dialog has been canceled. This will ship in the next minor release.