Optical mice loophole

A few days ago -- and apparently I think it's important enough that I'm blogging about it -- I learned by accident that optical mice don’t work on black tabletops.

Makes sense: the mouse's optical sensors need to have light bouncing back from the red LED -- and ''black ''means that all light is being absorbed.

Still, it took me a little bit to figure it out: ''What the **heck**....? It worked fine last night...''

--GG