(Click here for more details)Use a shortcut to turn MouseKeys on or off by pressing left ALT+SHIFT+NUM LOCK .
At the top, you have 2 power buttons. One for your PC (actually it puts it into Standby), and one for your TV. Appearently, this is a universal remote. However, I never found out how to program it interact with my TV though. If I ever find out, I will update this Epinions with that info.
Just below that, you have your transport buttons. Play, Stop, Pause, Skip, Rew, FF, etc - they are all there. The Record button is recessed so it is harder to accidentally push it.
Below the transport buttons, you get navigation buttons. They are pretty much the same as the directional arrow keys on your keyboard - it allows you to move the on-screen cursor around. The OK button is like the Enter key, while the Back button is like the Backspace key. The "i" button is the "info" button, and is akin to right-clicking your mouse. It brings up a small menu on the bottom right-hand corner and allows you to perform jobs that relates to whatever you are currently on (think context-sensitive box).
And below those lovely buttons are the Volume and Channel up/down buttons as well as a large mute button. I find this very easy to find, so you can raise or lower the volume, or completely mute the sound without much fumbling in the dark. In the center of all this is the Green Button that starts Windows Media Center 2005. If it is already started, the Green Button brings you back to the main start page.