Jeff,
I've been using MS Flight Simulator for years. The newest version is
visually beautiful, but I've discovered a major flaw. I was flying a GPS
approach and noticed the GPS courses between fixes were off. It ends up
the courses were true north, not magnetic north as depicted on the approach
charts. I contacted Microsoft and got some guy in India who wasn't a pilot
and didn't understand what I was trying to explain. I pushed the issue up
the line and finally got an upper level design guy and he knew what I was
talking about. The problem still hasn't been fixed.
A Legacy has been available for MS Flight Simulator for several
years.
You can also purchase packages that add various Garmin GPSs to Flight
Simulator.
Mike Easley
Colorado Springs