Ok.

I helped a friend of mine finally get P3DV5.1 installed this evening. He is in North Carolina, and doesn't have internet. His installation is vanilla. No addons yet. He just sent me a screenshot of KSGJ St. Augustine, FL. On his pc, his scenery shows tower objects in the middle of a taxiway (his screenshots look grainy as he took it with his cellphone of his monitor)

towers by retnavycpo, on Flickr

However, on my pc, the scenery looks ok. The towers are there, but not on the taxiway. Any help? Advice? Thanks, NC

towers KSGJ by retnavycpo, on Flickr