Same here, we had optical mice for the Sun workstations in the University labs in the early 90s. As you (and Evil Scot) mentioned, they were very sensitive to the angle of the reflective metal mouse mats! Thankfully todays incarnations are far more tolerant.
Posts by APR
2 publicly visible posts • joined 18 Aug 2021
Scalpel! Superglue! This mouse won't fix its own ball
Wednesday 18th August 2021 10:38 GMT
Serial "Interference"
Reminds me of a time when I was at a client site doing some private work for a former colleague who was trying to start up his own consultancy back in the early 90s. The client had another technician on site at the time (from a local PC supplier I think) and he was investigating some issues with the mouse. He declared that there was some "interference" on the serial port causing the problem. I waited until he left the clients office, pulled the ball out of the mouse and cleaned the dirt from the rollers. Problem fixed.