Xfire in game problem with Crysis warhead/wars

[Žarbon]

Hello all

I have a problem with xfire to get ingame in crysis warhead/wars. First it didn't work at both but then i noticed that in the xfire option in games, i could change in crysis wars(Multiplayer) the ingame renderer from DRD9 to DRD10 then it did work ingame. But if i try to make the same in crysis warhead(singleplayer) it isnt possible to change from DRD9 to DRD10 because the bracket of the ingame renderer is gray. u know if you try to click it nothing happened.

[Žarbon]

has noone an idea?