Taxiway lights

Hi All I have Brazil scenery "Wonderful Rio", from some years back. The green taxiway centerline does not show up on the visual scenery (FS2004) even though all appears to be well with the AFCAD. I disabled the Addon Scenery and its AFCAD and went back to the stock airport which displays its green centerline lights OK........ Any ideas appreciated. Thanks in anticipation David I cannot see any way to delete this.....so please disregard this post.....I've got updated scenery to replace the old stuff. Cheers all David