I can't see the four lines that appear when you are aiming from the hip or throwing a granade, maybe i thounched something in the console or something. Some one knows how to solve it?

Type in "cg_drawcrosshair 1" in the console.

it didn't work, should i reinstall it all?

Check the common errors thread. Also was it a HC server ?

No not now, try deleting your config.cfg it will reset your controls but will also get you your crosshair.

Thanks, it worked.