Terrain clipping issue

Hello everyone,

I am having a problem with terrain clipping. I think the picture below best represents what is going on.

http://forum.thegamecreators.com/xt/xt_apollo_pic.php?i=1542414


To re-iterate though, it looks like the terrain is not being rendered at certain angles as I move around. Is there a way to change the distance from which the terrain is not rendered from the control object?

Thanks for any help.
-Michael