Not logging in- IF U CAN HELP PLS REPLY.

Ok, I got banned for a month and i was able to play for a month. But now that i'm unbanned, whenever i start CF i type in my username and password and then click OK. Nothing happens. I cant click OK again but i can click exit and Save Name. I have already tried reinstalling so dont suggest that -.-. If anybody can help me, please reply. I love playing this game so every day sucks when I cant play. PLEASE HELP!!!!!