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For around a year I have had an issue with my USB mouse's middle button action whilst browsing the web. Essentially if I use the middle button to open any link, about 5% of the time it will open two new tabs instead of just one. Equally, if I use the middle button to close a tab, it can sometimes mistakenly close two tabs which I then have to restore with Control + Shift + T.

Does anyone know what might be causing this? Here's what I have tried so far, but with the same results:

  • Swapping the mouse with two other mice
  • Tried Internet Explorer in place of Chrome
  • Ran Windows in safe mode

UPDATE:

I have now tried a spare PS/2 mouse I had, and so far I haven't been able to reproduce the behaviour after five hours (I normally see it at least once per 30 minutes). Could this really be a USB issue?

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Which mouse software are you using, and are you sure that your finger doesn't bounce ? – harrymc Apr 4 '11 at 12:53
Thanks for the comment @harrymc. I'm not using any special mouse software, just the normal driver that comes with Windows 7. I can't rule out my finger although I use other systems (and mice) at work and don't see this problem. – Gareth Apr 4 '11 at 13:58
Maybe you could try working at home in Safe mode for a short while, to verify if the problem comes from an installed product. – harrymc Apr 4 '11 at 14:02
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The fact that it occurs in two independent programs would indicate a hardware or driver issue rather than a software one. – ChrisF Apr 4 '11 at 14:56
I'm in safe mode now - it took a long time to reproduce but unfortunately after browsing for a while I got some links that opened twice from a single middle click. Really curious what the problem is then... – Gareth Apr 9 '11 at 3:49
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5 Answers

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Have you tried using a different mouse? If there is another mouse readily available, connect it and see if the issue persists.

When I've experienced this issue it has tended to be the mouse. Either a faulty sensor or click mechanism that sends two reports in quick succession. Thankfully mice and cheap and easy to test and replace.

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Unfortunately yes: I substituted for another (old) mouse and after browsing for a while I had a link open in two tabs. My other half has a new shiny mouse so I'll give that a try later just in case the old mouse is worn too! :) – Gareth Apr 5 '11 at 0:37
Tried a third mouse now and still have the problem - two are corded optical, one is cordless optical. – Gareth Apr 9 '11 at 3:50
I tried with a fourth mouse (PS/2 instead of USB this time) and haven't had the problem happen again, so I am satisfied and closing the question. I doubt I'll ever find the root cause (USB issue? USB driver issue? Three faulty mice?) mind... :) – Gareth Apr 12 '11 at 9:19
Normally USB polling issues are more evident in high-end gaming mice. However, if your USB controller were going, a mouse click would probably be relatively sensitive to modulations in the frequency of the USB as they are expecting to send information at regular intervals and when the controller isn't ready or the clock isn't synced properly, it could exhibit such behaviors. Do you know if there are more than one USB controller on your system? If so, would connecting to a port on a different controller make a difference? – music2myear Apr 12 '11 at 14:37
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up vote 1 down vote

I would recommend trying to reinstall your mouse driver and see if that fixes your problem.

I found this that should guide you though the process if you are having trouble

http://ezinearticles.com/?USB-Mouse-Drivers-Problems---Fix-Your-USB-Mouse-Driver-Errors&id=2776074

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up vote 1 down vote

If I understand your question correctly, you have this issue with both Chrome and Internet Explorer, right ?

If I were to try to cast a wide net to hunt for a ghost bug like that, I would also run a scan against spyware or viruses (AdAware, SpyBot, Microsoft Security Essentials ...)

Is your mouse plugged on a USB port, or is it plug on one of the PS/2 ports of a desktop PC ? In the latter case, I would try to exchange the keyboard and the mouse plug. If the bug vanishes, you probably have a hardware problem with your first PS/2 port.

Hope it helps,

G

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Thanks - I've done a full sweep of checking for any malicious apps including rootkits as well just in case. Nothing found. The mouse is plugged into USB. – Gareth Apr 12 '11 at 3:23
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up vote 1 down vote

may be you assigned your middle button a function like "2x click" there was same function on my a4-tech mouse which you could assign 2x click to middle button. You can change its assigned function by installing & configuring your mouse software.

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Thanks, in the past I used nifty mice like that but the mice I use these days are very simple and don't have their own software or special drivers. I couldn't see anywhere with the standard Mouse Control Panel applet where I might have configured something like that, but thanks for the suggestion. – Gareth Apr 12 '11 at 3:27
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up vote 1 down vote

Its either your mouse or your driver, try obtaining a new mouse or re-installing your mouse driver software. On the other hand your mouse could be set to some double click setting, explore your mouse software to try to revert these settings.

Best regards, Leon

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