ElitPilot i remember that , Very very long time ago when we got no prediction about time or fuel at all, we had added a waypoint and deleted it, afterwards it worked.But i didnt remeber that during the flight.
May be you are right it might have worked if we had done that.
But i still wonder the reason , /FF still looks suspicios.
I looked up the FCOM but couldnt find any details about it.
id like to know what difference it makes if we deselect FF or FQ ,
i have less knowledge about that
and would appreciate if anybody share his knowledge..