Flight 1 PC-12 Landing lights don't work.

Hi all,I am very impressed with the Flight 1 PC-12 except for the support on their support forum. I have had this question posted on that forum for several days with no response. It may be because they don't support Vista. Therefore I request any help that you folks might offer. My problem is the area in front of the airplane is not illuminated by the landing or taxi lights. There is some small lighting effect in the distance but nothing close to the airplane. When viewed from the outside, the landing lights appear to be illuminated. Other aircraft landing lights seem to work fine. I am running a Vista 64 machine with an ATI 1950 pro video card with the latest drivers. I looked in the aircraft cfg file and there is nothing listed for landing lights in the lighting section. So FSX must use another method? Thanks for any help.Bill