Posted 26 November 2007 - 05:26 AM
Here are the answers to the questions: (and yes I agree this is most weird indeed)
Q: Is it an optical mouse?
A: I have disabled the on-board pointing joystick and this model laptop has no touchpad. At the moment I use a USB plug-in mouse (optical) but because the problem happens even if the mouse is unplugged, I suspect it ain't the mouse hardware itself.
Q Is it a cheap mouse?
A: Is it a Microsoft (non-cheap) mouse but see above - suspect strongly not the mouse hardware itself.
Q:Do you have a mouse pad
A: No, problem happens across different mouse surfaces and different desks - A4 paper, tabletop, sofa etc.
Q: Have you tried another USB port?
A: Interesting one, no I have not, but since the same thing happens with the built-in (non-USB) joystick and because it happens witht he nouse unplugged ... probably not an issue.
Q: Have you cleaned it?
A: No but it's optical + diferent mice same prob etc.
Q: Why didn't you uninstall from Control Panel
A: Ok a quick summary is in order here:
At first I was using the built-in pointing stick/joystick mouse (this is one of those little stubs that pokes out of the keyboard) this is built-in to the laptop. I suspected driver problems so tried to uninstall by deleting the mouse in device manager. Usually when I delete things in device manager, the disappear (select, hit del key and it's gone). But for some reason the mouse did not. The icon stayed there even if you delete it over and over. Made me susoect something fishy.
Also, if I plug in the USB mouse, it appears correctly in device manager. I can delete it and the the PnP detects it and reinstalls if it is plugged in again.
And finally, the USB mouse (as shown in device manager) has an option if you right-click it, to disable. The other (mouse you can't delete) does not have a disable option on the pop-up properties list.
So I weeded the pointing stick/joystick mouse out of the registry by removing every key that says "ATI Pointing device" out of the registry. This worked, the pointing stick mouse no longer works at all. Once this is all over, I can reinstall the dirvers. To simplify things, I thought I'd concentrate on the USB mouse, since this is behaving ok in device manager. (Although as above, problem now appears to be not hardware related.)
Q: Fed it cheese?
A: Prefers Stilton to Red Leicester
Q: Does the mouse sit on a vibrating surface, eg speakers, a fan, or is a wireless phone nearby
A: No vibration or speakers. But maybe you have something here! Could this be a wireless issue? We have a lot of wireless stuff -
- 2x wireless home phones
- bluetooth mobiles
- wireless print server
- separate wireless printer as well
- wireless router
- 2x bluetooth PS3 controllers
(It's surprising I haven't been fried overnight ;-)
Could that lot be interfering somehow? BUT maybe not because all of this was not a problem before - well actually the wireless print server and wireless printer did arrive at about the time it went wrong. I will have to test this by sitting next to the wireless print server and pinter and then powering them off once the problem starts, then seeing if this stops it.
Q:Is this the mouse that came with the lappy
A: The built-in keyboard one came with it but this is now disabled.
Q: What Antivirus do you have
A: Nortons AV but it was free trial and is now out of date by a few months. I better get that subsription in. Had Macaffe on there as well but I think this has been removed, I must check.
Q: The first thing we need to rule out is malware.
And tho not till later perhaps, you can do a repair install, not a Full
A: I'm keen to do that - I have a CD for recovery, I have not tried it yet because I'm worried it might re-format everything, but I should check this out.
Life is for living, Life is not a dress rehearsal, Carpe Diem!