"JANA" <j***@ca.inter.net> wrote in message
news:3ba4heF6i2drqU3@uni-berlin.de...
> This may sound a bit illogical, but try another keyboard. I have see this
> before. If it is not the combination of the keyboard and the mouse, then
> it
> is something with the PS2 mouse port.
>
> In any case, I would get a USB mouse. You will find it to be better than
> the
> PS2 type.
>
> --
>
> JANA
> _____
>
>
> "Ian" <i_lee***@bigpond.com> wrote in message
> news:0QN3e.22400$C7.13537@news-server.bigpond.net.au...
> Hi all,
>
> Recently my mouse has started misbehaving.  Currently the pointer will
> happily move left/right (or horizontal), but when moving it up/down
> (vertical) it doesn't respond properly.  Sometimes the pointer will slowly
> move upwards (whether I'm moving the mouse up OR down), sometimes it'll
> move
> slowly in the direction I want, or more often it will start and stop with
> jerky motion.  In the meantime, I'm using what windows labels a "Human
> Interaction Device" (HID).  It's a little USB trackball type thing, not
> meant for hours of use.  Occasionally while using this (my PS2 mouse is
> still plugged in), the pointer will drift up on the screen.
>
> Here's what I've done:
> Cleaned the mouse rollers.
> Taken the mouse apart and cleaned it.
> Bought a new mouse (still problems).
> Tried the mouse on another computer (no problems).
> Tried another mouse on this computer (still problems).
>
> In summary, I don't believe it's mouse.
>
> So I did this:
> Updated the driver.
> Removed the device (and let it redetect).
> Cracked the sh*ts and followed the instructions here:
> http://support.microsoft.com/?scid=kb;en-us;321122 (and I know my mouse
> isn't an Intellimouse).
> Didn't follow them closely enough (especially the backup part) and
> partially
> wrecked my registry, removing ALL mouse abilities (including the HID I'm
> using in the meantime).  Finally fixed that.
>
> All of this still didn't fix the mouse.
> I rebooted to Win 98 (dual boot system) where the mouse used to work.
> Doesn't work properly anymore.
>
> In summary, I don't believe it's the software.
>
> I did read somewhere on google newsgroups about this sort of behaviour
> being
> caused by hardware (bad surface mount capacitor or similar) near the PS2
> port on the motherboard (on a different system).  But I think they said
> that
> usually affects BOTH PS2 ports, and I've had no troubles with my keyboard.
> I have enough electronics knowledge to be able to replace something, but I
> know how fiddly SMD's are.... <shudder>... I don't like them.
>
> Does anyone have any knowledge what could be causing this (hardware or
> otherwise)?  Any suggestions about how to fix it, which cap it is, or how
> to
> test for faults?
>
> Cheers,
> Ian
>
> If I can't fix it, I'll just have to buy a USB mouse, but I'd like my PS2
> mouse port to work.
>
>
>

"Ian" <i_lee***@bigpond.com> wrote in message
news:0QN3e.22400$C7.13537@news-server.bigpond.net.au...
> Hi all,
>
> Recently my mouse has started misbehaving.  Currently the pointer will
> happily move left/right (or horizontal), but when moving it up/down
> (vertical) it doesn't respond properly.  Sometimes the pointer will slowly
> move upwards (whether I'm moving the mouse up OR down), sometimes it'll
> move slowly in the direction I want, or more often it will start and stop
> with jerky motion.  In the meantime, I'm using what windows labels a
> "Human Interaction Device" (HID).  It's a little USB trackball type thing,
> not meant for hours of use.  Occasionally while using this (my PS2 mouse
> is still plugged in), the pointer will drift up on the screen.
>
> Here's what I've done:
> Cleaned the mouse rollers.
> Taken the mouse apart and cleaned it.
> Bought a new mouse (still problems).
> Tried the mouse on another computer (no problems).
> Tried another mouse on this computer (still problems).
>
> In summary, I don't believe it's mouse.
>
> So I did this:
> Updated the driver.
> Removed the device (and let it redetect).
> Cracked the sh*ts and followed the instructions here:
> http://support.microsoft.com/?scid=kb;en-us;321122 (and I know my mouse
> isn't an Intellimouse).
> Didn't follow them closely enough (especially the backup part) and
> partially wrecked my registry, removing ALL mouse abilities (including the
> HID I'm using in the meantime).  Finally fixed that.
>
> All of this still didn't fix the mouse.
> I rebooted to Win 98 (dual boot system) where the mouse used to work.
> Doesn't work properly anymore.
>
> In summary, I don't believe it's the software.
>
> I did read somewhere on google newsgroups about this sort of behaviour
> being caused by hardware (bad surface mount capacitor or similar) near the
> PS2 port on the motherboard (on a different system).  But I think they
> said that usually affects BOTH PS2 ports, and I've had no troubles with my
> keyboard.
> I have enough electronics knowledge to be able to replace something, but I
> know how fiddly SMD's are.... <shudder>... I don't like them.
>
> Does anyone have any knowledge what could be causing this (hardware or
> otherwise)?  Any suggestions about how to fix it, which cap it is, or how
> to test for faults?
>
> Cheers,
> Ian
>
> If I can't fix it, I'll just have to buy a USB mouse, but I'd like my PS2
> mouse port to work.
>

>Well, I got sick of having to use the little trackball HID thingymabob, so I
>bought a USB mouse.  For the first day, it worked flawlessly.  But now...
>sometimes the pointer will barely move at all, simply crawling to the left
>no matter which direction I move the mouse.  Or it will move fine from left
>to right, but very jerky motion (if any) up/down.
>
>The problems seem to come and go though.  It'll work fine for 5 minutes,
>then it won't.  Sometimes rapid vertical movement will help it work, but
>sometimes the pointer will only move 1 or 2 pixels.
>
>The USB mouse comes up as a USB HID, and uses the same drivers as my
>trackball.  Yet one works and the other does not.  I'm reasonably sure it's
>not the hardware as:
>1. It's new
>2. I haven't been able to replicate the problem on another system
>(admittedly Win98 when I'm using WinXP)
>
>WHAT'S GOING ON!  Working without a mouse is EXTREMELY difficult.
>
>I've tried virus and malware scans in the past (and I'll try them again now)
>but with no results.
>
>Any help at all would be great, I'm pulling my hair out here!
>
>Cheers,
>Ian
>