Have you noticed... you make code changes in VCS and save. Then "Run without Debugging". And it runs your PRIOR build! You run it again and it uses your new code. Not all the time, maybe 50% of the time. So be careful. I only started noticing this about a week ago or so. So now I run the simulator, kill it, and re-run it... to make sure it is using my current code. Ugh.
