Pc- crash - freeze

hi

i need help, I am working in a internet cafe and all the PCs has Installed Cross Fire. The Game Crashes and freeze Mouse etc.. all the PCs. After the AutoPatcher the Game trys to open i get small black window and nothing happens, so the only thing i can do is restart the Computer.
I installed all the new drivers etc latest version of Cross Fire nothing worked. Theres only one PC that runs Cross fire normally. I dont know what to do please help. I need this Game,so much people play it everyday here