Maybe I missed it, but did you try removing all plug-ins and running the simulator "clean" with no add-ons?

A certain number of plug-ins are there by default.  To go back to defaults, I have found that you can remove all the contents of the "plug-in" file (under resources I think - not at home now), save them to a new folder, and then run the updater to get the ones you really need.  If that doesn't help, you can take them out of the new folder and paste them back into the plug-in folder without having to re-install them.

 

John