I am unable to maintain altitude and the controllers keep contacting me to adjust altimeter setting constantly  >:( Even though I press the "B" key and check the numbers they're close then I adjuts using the mouse.They keep on contacting me. It's a nuisance!All I've done to the a/p is add the GPS gauge as itwas added back then. Here´is my a/p section in the panel.cfg file:

[Window03]
Background_color=0,0,0
size_mm=447,106
position=2
visible=0
ident=10005
gauge00=Captain_Sim.p721.P12!P12_001_ap, 20,0, 427,106
gauge01=Cessna!Nav_GPS_Annunciator, 0,0,20,20
gauge02=Cessna!Nav GPS Switch, 0,20,20,20

Has there been an update or amI missing something?

Berlopez