In comp.sys.ibm.pc.hardware.misc Dave Hardenbrook <> wrote:
> I am a computer tech providing phone support for a user who has a
> wireless mouse connected to her PC, which has been working fine until
> today -- Now wherever she moves the mouse pointer it automatically
> registers a left-mouse click without her clicking, as though the left
> button was stuck.
> Over the phone, I've had her replace the batteries, press "reset" button
> on the receiver, unplug the receiver from the PC and plug it back in,
> scan for viruses and spyware, and reboot her system several times. None
> of these have made any difference. I'm guessing I may have to go onsite
> and clean the insides of the mouse myself, but does anyone here have any
> ideas what else might solve this problem?
> The wireless mouse model is Microsoft CEO-560, USB. The OS is Windows
> XP Home SP2.
> Thanks ahead.
> Dave
USB mice are supposed to have a standardized protocol, so that
is likely out. One possibility is shoddy RF engineering and
checksumming (MS does shoddy engineering all the time, so it
would not be a surprise) and an increase of residual RF noise.
The signals the mouse sensd could then be mangled. This would
however likely cause other effects as well.
However I cannot see thios being due to dirt in the mouse either.
The only mechanical problem I can think of is a shot microswitch
(can happen after a long time of abuse). They can be extremely
sensitive, and the click would then be just from the movement.
The most effective solution is probably to send a
replacement to the customer and have her send back the
defective part.
Arno
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