I'm back on this thread because CS apparently killed the Trouble Ticket (12712) I submitted back in March without any action because I never received a response and if I query the ticket number that they assigned, the response is that it doesn't exist. I have done another uninstall>download>install of the latest (2.7) basic and Expansion, but the problem continues: if I use the INS the wind speed indicates correctly but always from 0 degrees; the present position correctly displays the Lat/Long shown in the FSX position (Upper left corner after Shift>Z) but the INS groundspeed is always 59.1% of the groundspeed shown on the GPS (and confirmed by my speed/distance calculations). This groundspeed difference makes it impossible for the INS to accurately follow the flight plan. I'm hoping that anyone who had this wind direction problem back in 2015 and got some response about the problem and can educate me,  or to shame CS Support into doing something with my support ticket (12712) using the image files I posted in this thread.  The INS for my CS 727 is useless (the same INS on my CS-L1011 works perfectly).