About a year and a half ago I bought a new, game optimized high class computer system (Dell) mostly for use with R/C flight simulators. Then I bought Real Flight's G-3 with add-on packs 1 and 5. Recently I also added Expansion Pack 1. Performance has been dismal. Planes will not respond to control inputs and crash if any change is made to throttle, etc. Some days or time of day has been better or worse than normal, but overall, flying the simulator has been a nightmare. I have flown a few 'real' R/C planes and it was not like that at all.
I have been through stuff like this before and know from experience it is not me. Of course no one ever apologizes when it is eventually proven that the machine or device really was defective.
A couple of days ago I downloaded the Version 3.5. Broadband at the wrong time of day took 40 minutes. At a good time of day it might have downloaded in 10 minutes. NEW BALL GAME. If you have broadband and the old G-3 then download this 3.5 immediately!!!!!! Dial-up, contact Real Flight and have them mail you a disk. If you do not own a simulator or are unhappy with the one(s) you have, go and buy G-3, 3.5.
On 3.5 the planes all fly beautifully, all controls work perfectly. It is sheer delight!!!!!!!! WHOOOOPEEEEEEEEEE!!!!!!!!!!!!