Yesterday I updated AES to the newer version 2.20b. The NGX is configured correctly and all vehicles show and do their job, But while pushing back the Aircraft bounces in an uncontrollable manner! This happens with all models of the NGX and is quite annoying!! Anyone else experience this?

Not with the ngx but i had it with other aircraft. U need to alt enter out of fsx, fire up aes, set aircraft paremeters and there should be a repair for pushback tab. Click on that and the next time u load up fsx it should have registered. Let us know how u get on.Btw, u probably need to do that for each model.

and also you probably need to to that after every update of the aircraft.