I don't get my skybox working

[Thunderball]

I created a skybox how it was described in this tutorial:
http://www.seriousengine.com/bin/view/Editor/SkyboxAndRain

The skybox is already finished but the sky does not appear in the cube.
All sides of it are still red and i don't know, what is wrong with it.
Can somebody help please?

Here are two pictures:

http://mitglied.lycos.de/thunderball021/sky.JPG
http://mitglied.lycos.de/thunderball021/sky2.JPG

[Joben]

Quick skybox problem checklist:

Is the skybox room on it's own worldbase?
Is the Backround flag checked for that worldbase?
Is the Zoning flag checked for that worldbase?

[Krono]

edit: sry, i'm stupid :)

[Shrinker]

If you think you are stupid, there's always the option of deleting ones own post :P

[Fiendian]

It´s common to forget to flag Zoning/Room...

[--Fragman--]

And not to go in the correct rendering mode. Press numpad 6 to do that.