help! can't control the mouse!


anybody out there using cinema 4d or any similar 3d program. i have cinema 4d for mac os 9x. but i try to use it in mac os x under classic. when i use the program in mac os 9, i can easily move a object, but when i'm i try it under classic, the object moves to quickly. it's like the mouse is receiving the information to quickly and i can't control it. any idea on what's going on.