Crossfire won't start!! Please help

Client file corruption detected, closing game client <<<< This comes up when i start crossfire
I have tried reïnstall it and disable anti virus. I have tried update my driver NVIDIA GeForce 8400m G but if i download that i restart the computer and then its stay on the welcome-screen it won't restart.
I have Windows 7 Ultimate , AMD Turion64 x2 , GeForce 8400m G (NVIDIA)

Please help

My crossfire file, tell me what to do

. @iSmexy @Approved. Approve plox?

Write up in the search box : ("My Computer\Lokale schijf\Program Files\Z8Games\CrossFire") Or go to crossfire folder againe
And delete the File ("engine.rez") not in rez Folder only go to crossfire folder and search for it.
Hope it help