Some guys here from chile have been telling me that since a while ago (i suppose the last update), the anticheat is not allowing the x-fire when playing

is there proof that x-fire is some kind of link to cheats or that sort of things?
cause here at least we have never had problems with x-fire and cheating (that i've known)
i heard once that some drivers from ATI were bugged and made some kind of wallhack when the MSN window appeared when someone was playing, buy not with x-fire...
i would like to know if it is because of this "bug" (or something like it) that the latest anticheat update is not allowing x-fire...
thx