Two problems with this mouse I notice...

1.) Can't adjust scroll wheel sensitivity, My logitech mouse had free spin on it that allowed me to scroll really fast through a webpage or pack to go click by click how can I change this on this mouse its a $200 mouse after all I Can't find it but it should have it because its awfully slow trying to scroll through games menus and stuff like MMO games inventory when there is a lot.

2.) Future, battery that can be changed when it eventually wears down or not after all it comes with replacement switches should come with the ability to replace the battery too...

Too bad Logitech Mice have issues with receiver they used to make quality products.