I fly general aviation planes, mostly short flights, VFR. I would be satisfied with the default ATC in Prepar3d, V. 4.2, if it were not for a common problem, of the ATC window being grayed out and inactive. I am trying the pf3 as an alternate. However, when I try to load a flight plan, either one made directly in P3D or in FSTramp, I get a message that "there was a problem whilst processing this flight plan" and I should contact this forum. If I try again, I get a different error message, about locked files. I admit I have not read the entire pdf manual, but the section on loading a flight plan says nothing about any special format of a flight plan needed. I would assume that one generated in the flight sim program should work.
Is this a problem with the Demo version? I would hate to invest in the full program only to find that it is somehow not compatible with P3D.
Any help will be greatly appreciated.