Thanks for the answer, but:
been there, done that, got the t-shirt...
Shift F1 centres my view right in front of the ReVi, but there is still no reticle.
Not half of it nor a quarter nor an eighth... It's just not there... even after maximising the illumination of the gunsight
So this is apparently a bug on my computer, since no one else seem to encounter the same problem....
I can still shoot planes down with the Emil, but I presume it would be easier with the sight working...
I'm, using TrackIR 4, by the way.
Hopefully there is a solution, because I'm more inclined to the German side...
Greetings, Andy