My Secret Door Texture is Not Showing

I have this secret door and It's not showing it texture just the sky.
http://i60.tinypic.com/v7t652.jpg
But when I go to doombuilder it shows that I has texture
http://i61.tinypic.com/2zz7qty.jpg
whats happen?Can anyone help me?

There's a good chance that's caused by the ceiling of the secret door being set to F_SKY1 (or whichever flat you use for the sky, if you defined a custom one in MAPINFO). Having it set to the sky texture will make any upper textures show through as the sky instead.

Let me know if this fixes the problem.

http://i58.tinypic.com/fxdqo9.jpg
Yea it works thanks man. :)