Microsoft 4GC-00002

Pros: The mouse has very smooth responsiveness on the screen. No drivers required for basic mouse / keyboard operation on Windows 7 Cons: The mouse wheel is HORRIBLE. I don't know how to make it any clearer. The mouse wheel has very loose action... incredibly sloppy response. The wheel has a tendency to shift to the left or to the right when attempting to use it as a 3rd mouse button, so often times "middle clicking" produces no results because the mouse interprets the click as a left or a right click. This is a very different action than a Dell or Logitech mouse. Other Thoughts: The Zoom feature of the keyboard does not work out of the box. Many other special buttons on the keyboard work fine, but zoom does not work in any application I've found (Photo Viewer, Browser, Et al.) Keyboard is alright, but very loud / clackly while typing. RF / Wireless Dongle is on a long USB Cable so you can stow it away somewhere instead of having it protrude from a USB slot. The mouse wheel has smooth responsive action in a web browser, but in FPS games that have a zoom functionality (L4D, Team Fortress 2, Doom) the wheel becomes very unreliable. In Dragon Age: Origins it's very difficult to zoom in and out using the mouse wheel... something that I had no issue with using a Logitech mouse (with standard Windows drivers, no add-on driver disk.) I literally have to Aggressively FLICK the mouse wheel to have it zoom in or out in DirectX games removing any semblance of accuracy.