I use all my buttons? but nothing is happenning in the game. What Could I do?

i can t start the game i click play and it runs somthing game specifications thn i click ok and nothing hapens

Me and my friend just bought the game, but for some reason we cant join multiplayer together? I can see his room in the lobby, but when i click join it greys out then after about 5 seconds it becomes clickable again. its the same thing for him too. Even with other peoples game lobbys. Is there any reason why this is happening? Are the servers down or do i need to open some port forwarding?...

Does this run ok on Windows 7 64bit?

thank you =)