Is it a branded mouse – it’s much easier to recall and id the relics if there was a snazzy model name or brand associated with it. 😛
The pebble has regressed a little, the button is a little unresponsive and the movement is less than optimal, could be the cold temperature too. Will persist. 🙂
Made a Puppy Linux USB disk and updated the thread, don’t really know if this is the best for Boot/UEFI diagnosis though.