Stepmania Online

What I did was go on key config, and then I accidentally was clicking enter to remove the warning screen which resulted in me selecting the top option. Then without thinking (I hadn't noticed) I pressed down to try and go down to change the key setting. And then uh... I exited, resulting in select (Enter) being down instead and can't go past the start screen. What can I do about it? I've tried re-installing but it keeps my key configuration settings saved.

Thanks very much that'll be useful in future knowing that. By chance I found that Fn+Enter was treated as a different keypress to just Enter so I managed to use that to get to key config again. Thanks though!