I'm not having any problems with "Goto Airport..." or flying to PHNG on my system running FS 9.1. I took off from PHNG in the default C172, flew over to the Honolulu area to get 11 nm (as indicated on GPS)from PHNG and flew back to a landing. I had to fly a very steep approach for a straight in to runway 4!Ben or Vic might be a bit more knowledgable, but I wonder if you have a corrupted scenery or CFG file. Also as we are only a few days short of the solstace, maybe there's a change of season issue with a texture. I had the season set to summer, I'll try it again with the current date.
Robert
Near KORF