So I had this issue in Shift 2 at first, but re calibrating the pedals a few times fixed it. In Crazy taxi - it doesn't seem to be "fixable".
Basically I setup the game using the config program, and calibrate the pedals. The game sets the menu navigation to the pedals (and doesn't allow you to change it... brilliant.. /sigh). So once I'm in the game the damn menu is on auto pilot and just keeps scrolling. I can play with the accelerator / brake to get it to stop, so its obviously a calibration issue - the question is, how the hell do you calibrate it so this doesn't happen?
I tried using the Logitech profiler to combine the accelerator / brake into one axis, but that didn't feel right while playing the game.
Any ideas?