Yes, I've deleted the mouse driver that was present before. New drivers I've had to install manually; I guess because my laptop doesn't notice a mouse it doesn't flag mouse drivers as missing. So also device manager thinks everything is fine. When the trouble started a few months ago I would sometimes get a message that a USB device was missing or perhaps faulty. That has now changed to my system not noticing anything anymore - there should be a sound when I connect a device, also that sound is not there when I connect a mouse. My system appears completely oblivious to mice (I've tried a couple).
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