NewbieAstronaut

Hi, I have the Demo version of KSP and it is freshly downloaded and I have no problems running it. However, when I click "New game, resume game, or training," it registers my click but the game does not really start. I can click stuff in settings and everything else just fine, but I can't start playing the actual game. I have tried deleting and re downloading it, but I get the same problem. Help please!!!