RE: Realflight G2 error.
I'm guessing that your probably running under windows XP.
That version doesn't work, you need at least version 2.00.594
Now you MIGHT be able to run it by telling XP that you want to run it under Win 98.
Right click on the icon in desktop.
select properties.
select compatibility mode.
That about all that I can help you with.
Otherwise the long distance call.