Nav light range?

Hey all, I'm having a problem with setting up my nav lights. I'm using fx_navgrec.fx and fx_navredc.fx so they will show up in the VC. The problem is, there seems to be a minimum viewing distance requirement. If my eyepoint is closer than 16.4 feet (which happens to be exactly 5 metres. Coincidence? Probably not.) to the light, it doesn't show up. If I back up (using Active Camera) the light shows up fine. The funny bit is, my lights are about 15.5 feet from the centerline on each side. My pilot viewpoint is 1.5 feet left of center. So, the left navlight is 14 feet away, and the right navlight is 17 feet away. I therefore can see the right light but not the left one. If I shift over to the co-pilot seat, I can see the left light but not the right one.Anyway, anyone have an idea on how to tweak the .fx file so the minumum viewing distance is lower? I'd really prefer to avoid using the Gmax Material navlights, they have no problem with viewing distance, but are fairly ugly.Dan