So I must buy the full game of Turbo to play only a single new environment?

That would be Trackmania Turbo, right? And alrighty, I'll find the Maniaplanet exe and re-install! Thank you for the help

Thanks for the quick reply! I'm running the Steam version, and I own all three TM2 environments. Must I then install the Maniaplanet thingy and then re-install the games through there?

On trying to connect with some servers, I'll get this message after pressing the join button: http://i.imgur.com/On6Gzxi.jpg

I've probably tried restarting the game about a dozen times spanning the past couple of days. It just doesn't work! Please help!