Reynbow

I've bought, downloaded and installed the game via Steam. When I try to start the game I get a window that asks me to sign in to my stardock account to register the game. (I created a Stardcok account at the Stardock website) I put my email and password in and the serial number and I'm just getting a "loading" ring. Nothing seems to be happening, it's just sitting there "loading" something... Here's a scre