From: "FromTheRafters" <erratic@nomail.afraid.org>

David S>> wrote:
>> On Saturday, April 28, 2012 6:22:27 PM UTC-4, David H. Lipman wrote:
>>> From: "David S>"<david.smith7592@gmail.com>
>>>
>>>> The mouse has changed many times -right now a Logitech M515 (wireless),
>>>> before that
>>>> Microsoft 3500 wireless (used a battery every 3 weeks!!!), different
>>>> USB
>>>> mice -mainly
>>>> Logitech. This issue has been going on for 5 years or so, many mice and
>>>> 2
>>>> laptops.
>>>
>>> Please don't reply to yourself (especially with multiple copies) reply
>>> to
>>> those who reply to you.
>>>
>>> Oh, a Google Grouper - explaans all :-(
>>>
>>> If you use a wireless mouse and someone who is near you using a wireless
>>> mouse oin the same channel might affect your mouse.
>>>
>>> Use a wired mouse and see how that goes.
>>>
>>> --
>>> Dave
>>> Multi-AV Scanning Tool - http://multi-av.thespykiller.co.uk
>>> http://www.pctipp.ch/downloads/dl/35905.asp
>>
>> I am the only one with a wireless mouse -5-6 years this has benn going
>> on -I am pretty
>> sure with all the different mice and computers I have used it is not a
>> mouse issue.
>> (soory I used the wrong post reply button last time -I think).
>
> Hospital equipment can also cause interference, have you looked into that
> angle - EMI?
>
> Bottom line - your problem doesn't sound like a software issue
> (malware/spyware). Try a wired mouse as David has suggested, the process
> of elimination is a powerful troubleshooting tool.

Yes, that's a good point that some other EMI/RFI equipment can interfere.
Albeit, it probably would jam the mouse transmission rather than cause
erratic behaviour. But, its possible.

I have seen radio-telephones (the type that plug into a base unit to keep
the hand-set charged and wirelessly connect back to the base unit) often
kill DSL connections. A clam-shell, ferrite, toroidal filter is good for
filtering out the RFI from the twisted pair POTS wiring. Just open the
torroid clam, wrap the telephone line around the core and the snap the
toroid closed. Since it is a common mode filter, it doesn't effect the
Quadrature Amplitude Modulation (QAM) used in DSL.

--
Dave
Multi-AV Scanning Tool - http://multi-av.thespykiller.co.uk
http://www.pctipp.ch/downloads/dl/35905.asp