corrupted game client detected?!?

i recently installed crossfire on my 2nd pc and when i finally was readdy installing and patching(took ages to install all patches) crossfire started, my screen went black but no login page appeared,
instead this error popped up
http://img822.imageshack.us/img822/986/crossfireerror.png
i haven't modified the client but the patcher crashed about 10-20 times when it was updating
can someone help me plzz
thanks in advance