Check your software for the latest versions.
Software or no software makes no difference.
The movement isn't as nice as native mice. It's not that there's anything wrong with the Cocolino interface, it's that it uses a trick to make the scroll wheel available over one game port. This sacrifices some accuracy in the movement. You can notice this when making large diagonal movements at various speeds. Moving the mouse in a circle shape very slowly will result in the mouse pointer moving in a rectangular fashion.