disappearing object

i made a model, rigged it, and animated it. i set up the logic bricks like i should, but in-game the model disappears :< . can anyone help me out?

Well what I think you should do is to set the logic brick’s like so :

Always - And - Visible

I think this will help you out.

KEEP ON BLENDERING PEOPLE !!!

Stimpy Bob.

This may help.You did not say if you U.V. Map the model.
Check to see if the normals face outward. In edit mode.
Also if dynamics are setup wrong the model may jump away from the camera as soon as you start the game.
You dont need any logic setup to see an object in the game engine.
You can check this ny making a simple cubee and hit the §.Key
I hope this helps.