@ Alrik
It was yesterday...
Today i discovered the thread Demo not working and i realised that i had the same problem.
It was about the old drivers of my graphic card.
I got a good help from Yann, Merendrius, Yannos and Raze.
I did not play a lot for the moment, i will play more tomorrow.

[Linked Image from squirrel.ovh]
duplouy.net badsquirrel.ovh
bad-squirrell.deviantart.com