Yes it did and I also removed anything that did not pertain to FSDT KJFK in all my FS9 folders and set Max vertex to 19 instead of 21.
Allessandro-Does the new flatten bgl also fix the blurry texture issue for FS9 that Emmanuel alludes to in this thread http://www.fsdreamteam.com/forum/index.php?topic=967.0 ?
I am suffering from the same problem. It happens when taxiing. The taxi lines disappears a few meters just in front of me. I am running this scenery with no other addons within the same geographical area.