Hi Chuck,
Do you get the same issue if you're just doing the "blinky" app? Or is it specific to particular code?
Chris
Sorry to take so long getting back to you (had to work today).
I could not crash blink, I set break points, force a divide by zero exception etc and could still examine the ofending variable.
I am attaching the code that I was using. I am using 2 Netduinos a classic and a plus the plus is sending ON or OFF every 200 milli seconds(same setup that would only work correctly at 115200 baud). At the slower speeds the program was not seeing the CR & LF and the incoming text was not being reset to "". It would throw an exception, I would try to examine the incomingtext and visual studio would re-start. Jpegs of the messages in the first post.
This appears to be the same issue as
VS2010 Crash on debug
Thanks for looking at it,
Chuck