Brian Gaff wrote

It sounds like its deliberate.

Nope.

I know that when a sighted person has unsed any of my machines things like
single and double clicking get reconfigured so its hard to use the
keyboard without changing them back.

I'm assuming there is not ability to reverse buttoons in the software,

He's talking about unsoldering the microswitch
and soldering it where the other one is.

cos if the problem moves, its the mouse if it does not its the softwaare.

It must be the mouse if physically swapping
the microswitches in the mouse fixes it.

Not that physically swapping the microswitches makes any sense,
they are so cheap that it makes more sense to put in a new one
if the effort is warranted with one of the more expensive mice.

Capitol wrote

I am finding that wireless mice seem to be sending two pulses on a
left click. This effect is very irritating when it clears two tabs when
only one should be cleared. I find this effect on 2 laptops and one desk
machine running Linux and one desktop with W7. All using different mice.
Has anyone found a cure for this?

When I've had this problem it has always been a tired left mouse switch
(could they all be "tired"?) In the past I've swapped-over switches but
mice are so cheap its doubtful whether it's worth the effort.