Visio 2010 Crash

Visio 32-bit on Windows 7 was crashing a lot.  I'd lose a ton of work repeatedly.  Found this which hipped me to the solution:

https://social.technet.microsoft.com/Forums/en-US/visiogeneral/thread/50d7bf71-9ed7-42ee-803f-51c1fe4eeff1

Basically, disable the bluetooth add-in.  Note that you have to do this as admin.