Help solve this mystery - camera angle lock

[smokeys_pal]

WOW

Luffe your 'guess' is precisely the solution! Thank you very, very much.

Now I think I have to eat crow... I admit that at some point in the last week I downloaded Freetrack, though I thought it was after this problem arose because with no ability to fly planes I had started looking for other things to do. Perhaps the Freetrack download initiated this problem.

Thanks again for your help, Luffe. Terrific.