Hello! I had the same thing and restarting my PC fixed it. Failing that, try a reinstall?
Just in case anyone else has the same troubles getting started, I also had an issue with my character constantly jumping back (stick locked in up-back despite physically being in neutral) which was fixed by launching the game with the launcher .exe and ticking the box near the bottom that has the words "P1" and "Xbox" somewhere in amongst the japanese characters. I'm using a 360 TE stick.
The last bit of advice I have around technical problems (which is actually on rice digital's site) is to download something called "applocale" from microsoft and use that to run the game (run applocale and it asks you what program you want to run with it). You probably have to run the applocale installation file as an administrator if you're on anything later than WinXP.
