direct route gets disoriented

[poden]

Well, it doesn't seem like it would be an FSP problem. You should at least fly that route without using FSP and see what happens (use time compression
to get the test over with quickly).As far as what would cause the problem in FS, I don't know.

Recently I did a test of FS flying at high latitudes, and the whole cylindrical projection problem didn't really pan out; the only odd thing about it
is the scale distortion seen on the map at high latitudes. You can actually fly very close to the pole. Above 89 degrees, accessing the map will cause
the display to kick out a non-fatal error saying it wants the latitude to be less than 89 degrees, but that's it. You can just close the map and
resume flying. It seems that the cylindrical projection is only used in the display of mesh terrain, and the actual flight dynamics are modeled on a
fairly accurate WGS-84 derived sphere.

Its unclear why it would go batty over Greenland. Possibly (but not likely) the proximity to the North Magnetic pole? Sounds like another test is needed!