Please visit this page http://www.youtube.com/watch?v=PggHt4xNp0Q to see what problem i have.Does someone know :( ???

Have you got the latest graphics drivers?

yes i have. I want to play worms 4 :((

Are those the only two games that you have a problem with?

yes these games : worms 3d and worms 4 mayhem have only this problem.Worms armageddon and other games runs normally.

are you using a legal copy of the games?

yes ! i use legal games bought from shop,but i tried demos too.same problem in demos :S. .... Same problem was in cs 1.6 but i changed something in video settings some g3d or something and it gone but this problem is still in worms 4 :S