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In the course of doing stuff on the computer, the mouse always moves, by itself, to the bottom left of the screen - I'd say several times in the course of an hour. I thought this might be an issue with the driver, so I re-installed the driver, but the problem continued. Then thinking that the mouse is faulty, I replaced my Microsoft Wheel Mouse with a Dell mouse. The problem still continues.

How can I fix this problem?

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is this a slow gradual move, or a fast jump? – Nate Koppenhaver Nov 21 '11 at 1:39
@NateKoppenhaver Fast jump. – AngryHacker Nov 21 '11 at 6:28
Your mouse battery is going dead. If it's a corded mouse, the cable has broken where it enters the mouse. – Daniel R Hicks Nov 25 '11 at 23:34
up vote 2 down vote accepted

Are you on a laptop? The trackpad or thumb mouse may be faulty. See if you can disable it in the Control Panel or its configuration application.

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This solution was a great idea, but ultimately it did not work. – AngryHacker Nov 25 '11 at 17:40

If you use a mousepad, it could be the culprit. Mousepads with pictures can make your mouse pointer move alone or make your mouse pointer "jump" non-smoothly when you move it. The best mousepads for me are with solid colors.

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It was actually the touchscreen of my laptop. I disabled the Tablet PC service and all is good now. – AngryHacker Nov 25 '11 at 22:30

I also have this problem on my Windows XP PC with a Pentium 4 processor; I assume it is because of the speaker's magnetic effect on the mouse.
I have tried lot of fixes, but the problem continues. I suggest to keep the mouse away from your speakers if you have them

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Which kind of mouse are you using? That is strange. – iglvzx Nov 21 '11 at 22:03
Maybe Logitech or Microsoft. But it happens..I thought it to be an OS problem but in other PCs also I've marked that.In laptop never faced such a problem. – rohan-patel Nov 22 '11 at 4:40
It is not due to the speaker's magnetic field. – Jamie Hanrahan Oct 5 '14 at 11:59

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