From: J. P. Gilliver (John) on
In message
<90ab0054-ffe9-4da4-a130-b6059bf5a2d9(a)x1g2000prc.googlegroups.com>,
Robert Macy <macy(a)california.com> writes:
>On Jul 23, 8:33�am, AdeW <adn...(a)live.co.uk> wrote:
>> My mouse becomes erratic a while after starting computer where the
>> pointer disappears into the corners and the context menu is randomly
>> activated.
>>
>> So i use the accessibility mouse which uses the arrows on number pad
>> until eventually the keyboard stops responding but accessibility mouse
>> on the number pad still works.
>>
>> I restart the computer and its all fine.
>>
>> I tried Dr Watson but it just said nothing obviously unusual
>>
>> Scan reg nothing wrong. Scandisk fine. System file checker just says
>> setupx.dll is wrong but i've read its a file not to worry about.
>>
>> I thought it could be a problem in the internet explorer cache but
>> i've had this mouse problem when i had never started IE after
>> restarting computer.
>
>SAME PROBLEM!!!
>
>This is standard keyboard and standar mouse cabling to dedicated ports
>
>The mouse goes nust, move right, soemthing goes left andhighlights
>screens and weird beyond belief. At first thought was, a program
>doing it, but today after accidentally bumping the mouse plug, and
>itdoesn't feel very secure, and the thing went nuts until reboot; I'm
>going to guess that it all stems from some kind of unreliable contact
>to the mouse, causes the program to not understandand crass, but the
>keyboard keeps working ...sometimes. Sometimes the mouse going nuts
>combines with the keyboard going inactive. Again points to unreliable
>connection.
>
>The connection is erratic, so after reboot works again.
>
Sadly, the mouse socket is soldered into the motherboard; as anyone
who's worked on electronics knows, connectors soldered into boards (at
least right-angle ones) tend to go flaky after a while. A mouse one,
where (however small) flexings of the cable are continuously applied, is
more likely to go, I suppose. (The keyboard connector is part of the
same structure.)

_If_ you feel competent, you can touch up the solder connections - but
that involves completely dismantling the computer, as they're under the
motherboard.

_If_ you can get it into a position where it seems reliable for a bit,
it may be worth using a cable tie, lacing cord, tape, or glue to hold
the end few inches of the tail (near the plug end) so that the flexing
is minimised; an extension lead might have the same effect; a wireless
setup would too. Ditto a USB mouse/keyboard, though I don't like using
those on a system that has a "proper" PS/2 option, as (a) it leaves a
connection unused (b) it uses up (usually scarce) USB ports (c) it often
doesn't work during boot.

Of course it _could_ be just the mouse, though the behaviour suggests
otherwise -- but certainly worth trying. (Or even a serial or bus
mouse!)
--
J. P. Gilliver. UMRA: 1960/<1985 MB++G.5AL-IS-P--Ch++(p)Ar(a)T0H+Sh0!:`)DNAf

I had lunch today in a restaurant where the food was abdominal. - G4PKP's
bienapropism list