i had this problem too. i UNPLUGGED them from the USB port and plugged them back in. then recalibrate, but make absolutely sure that your feet are not on the pedals when you are calibrating them. for example: when you start to calibrate them, keep your feet off until your told to move something on them. i found out that my brake was on regardless of what i did because my feet were pushing down on them a little bit when i was calibrating them. but unplugging and pluggin them back in with the system on should fix it.