Devonshire wrote:

Funny, I've been using optical mice for at least 15 years... Nice to
know they were invented only 5 or so years ago! I was ahead of my time
- that, and my steam-powered computer : )

Dan


An optical mouse in 1991? You sure about that? Was it IBM compatable?

Aaah, therein lies your problem. Your vision is blinkered.
Many *nix systesm had optical mice before the PC.