I have a shift problem on the FZ50 GTR;I never use auto clutch and I never use auto shift,so when I drive the FZ50GTR it most of the time dos not react to shifting down (4,C3rd,C2nd,C1st),or from 2nd to 3rd,I have noticed that other cars don't have that bug or "problem"! I have my throttle on LEFT MOUSE BUTTON,brake on right MOUSE BUTTON and "H" shift on WHEEL UP or WHEEL DOWN,AND,THE PROBLEM IS NOT IN MY MOUSE,CAUSE IT IS "THE BEST OF ITS KIND"-->MICROSOFT LASER MOUSE 7000. An advice or CLARIFICATION would be greatly appreciated!