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

HERE IS what I have done: firstly I launch the game after download, the config pop up, and then no-more happens. This is the problem cause by videocard. I went to NVIDIA Control Panel "Manage 3D setting" page, found the RaceConfig_Steam.exe in my game folder and manually choose to run it with my NVIDIA independent videocard. I run it on Win 7 Compatibility mode. then the game works, I can enjoy the opening and access to the game menu, but when it try to start a race event, the event crash (minidum...

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 =)