client file corruption detected

every time i go to log on to the game this message pops up and shuts the game down.....client file corruption detected,closing game client so i unstalled cross fire and reinstalled it 3 times and i keep getting the same message i am running windows xp professional on my computer have all the requirements that i need for the game please tell me what is going on i down loaded the game from your site so who knows please help.thank you

Comments