Photoscenery not appearing

I've been having some trouble with a small airstrip I'm building using a photoreal ground texture. I have all my seasons, night lighting, and blend mask and when I compile it using the FSX resample.exe it gives me a .bgl which I place in a folder, add it to the library, etc. etc. But it does not show up in the game. In addition in tmfviewer I have to select Show Missing Data Mask to see the scenery appear. Any thoughts on what's causing this? I sense it's a .inf issue.Or is it that my scenery doesn't fill an LOD 13 square? For more info see my design thread:http://aussiex.org/forum/index.php?showtopic=5882ThanksAlex