I have a problem getting GSX to work with the free demo FTX Iceland. After installation of the scenery, GSX cannot find anything, be it gates, parkings or runways.
I posted this problem at the ORBX forum, but the developers didn't bother answering, probably because I wrote that after the trouble with GSX, it was unlikely that I would buy any of their products...
I've tried modifying the positions of the BIKF airport with GSX, and saw that GSX accesses the standard BGL and not the ones provided by ORBX. I don't know if this has anything to do with the problem.