sprite... I hate sprite...

And the sprite hates me... Sob...Yes I know that it's a very stupid problem but i have a sprite used as an atmosphere (look at the screenshots) and when I rotate the camera I can see the planet (deformated) under it.... yes I'm not very clear but look at the screenshots

Set the entity order of the sprite to be higher than the entity order of the planet. That should sort it. So:

EntityOrder planet_mesh,0
EntityOrder atmosphere_sprite,1

I think this is because the sprite is halfway through the planet, and when the camera moves around the side of the planet, the sprite is turning to face the camera so the sprite is altering the colour of the planet showing behind it.

Oops.. =)

No I can't see the atmosphere if i use
--EntityOrder atmosphere_sprite,1--
Edit: The sprite MUST be in the middle of the planet....

You need to give your stars an entity order also, otherwise that mesh will cover the atmosphere.

Are you using a skybox/sphere for the stars? Did you set the EntityOrder of that to 1 also? If so, its likely that your sykbox is still being drawn after the planet atmosphere (explaining why you can't see it). Set the entityOrder of the skybox to 99 or something to make sure it gets drawn before everything else, then do what RossC said.

[edit] Pongo types faster than I do.

Oh... ehm... mmh... ok now I should look like as a lamer...
Edit: Ah... I've forgotten: Thnx!!!!

Artemis: Your sig, translated: "All Gaul is divided into three parts, one of which the Belgae inhabit, the Aquitani another, the third, those who in their own language are called Celts, in our Gauls"?
This is the first sentence of Caesar's Gallic Wars.

Excellent!!! It's strange to see the first sentence of the "De Bello Gallico" in english...I'm not a british but a "latin" (Italian boy :) )...
But I can't find out where your sig came from...
Edit: But You haven't translated "Ave Atque Vale Caesar"... Do you want a cue? :)