It appears that many users have problems with Saitek Quadrant drivers setting up the Registry incorrectly for one or more of the levers, with the result that either only 50% of the range use used or the values you get are only on (max value, 16383) or off (min value 0 or -16384).   Here is the way to edit the Registry and fix this, at least until Saitek fixes their installers. (Thanks to a main forum reply by "goaround"):   ====================================   Here is our registry cali