I cannot get the mini gps to work. Click on tool tray, select mini gps, press set position on from box (correct lat and long figures displayed for the airport I am at) then enter waypoints/fixes for active and standby. No lat and long values in either, and pop up displays show no values and after take off deviation bar does not work. The fixes all exist on XP data base, I have checked on map display and used successfully with other aircraft with FMS. I have XP 10 fully updated and the latest updated Saab 340. I use a Mac 21.5, OS Mavericks around 6 months old. Everything else works wonderfully, this Saab is the best aircraft simulation I have used in over 20 years of simming. I am happy just to use vor and ndb but it would be good to make use of the gps database from time to time. Roger