Mice and Pointing Devices

[TheCutNut]

Hello, I am currently using an MX600 Cordless Laser Mouse, and from some day out of the blue after a reformat, my mouse began to double click when I only wanted it to single click. In fear of my computer having a virus, I reformatted once again, and did not install an internet connection, but it still proved to have the same problems.

I once did have SetPoint, and still do, but this situation occurs with or without SetPoint. I have determined the problem may be in my mouse itself, what may be the problem and how do I fix this? This situation has become really annoying as I am unable to recycle things, highlight full pages, and worst of all, accidentally delete very important work.

[rlowens]

Sounds like either the microswitch is faulty or the plastic that touches it has worn down a bit. The microswitch wearing-out is a common problem on every brand of mouse I've ever owned.

Try it on another PC to make sure it is the mouse that is the problem (not your PC for some reason). If the problem is the same on the other PC, get the mouse replaced or fix it yourself.

Less than 30 days since purchase, you need to exchange it where you got it.
After 30 days, you would be covered under the 3 or 5 year warranty from Logitech.
See here for RMA info.

Here's some options if you want to repair it (voids any remaining warranty):
1. You may be able to bend the metal spring back into a shape that will work. See these instructions.

2. Any standard Omron D2F series or compatible microswitch can be used if you want to do some soldering. Digikey.com and Newark.com sell them, or you can salvage a less-worn microswitch from another dead mouse.

3. After you get it fixed, don't press hard on the buttons (it wears them out faster).

[TheCutNut]

Alright, thank you. I don't think I can return the mouse because I threw away the receipt for sure. I have no idea what a microswitch is but I have soldered before, and I don't have any equipment to solder. It may be the spring you are speaking of, because my mouse has this very small dent that is black (as if a shadow is there) on the left-click button.

[rlowens]

Logitech doesn't always require a receipt, as they can tell the date of manufacture from the PID on the label. Give them a call and see what they can do first.

[cxerri]

Hi, i am using my third MX7 mouse. the first i returned to logitech after 9 mos. MX7 number 2  i just returned to  Walmart,  it started to "Double Click" after 3 mos. looks like Logictech got a batch of bad Made " in China micro-switches".  return it to logitech.

[CJChew]

Hi,

Please send an e-mail to Customer Support if you need assistance with the replacement procedure.

[Zveki]

I had 2 mouses and saw a couple of friend's mouses that started double clicking on single click..

All of them were Logitech.

This is for sure I will not buy another Logitech ever again.

[EastCoast2]

It is not the wireless mouse, it's Windows 7 and the fact that Logitech strangely has dropped the setting to set the timing of a double-click. That setting was available since the 90's. Why they dropped it is anyone's guess.

If you use Logitech mice at work, a ghost double click in Purchasing software is dangerous enough we have to drop the use of Logitech mice until a fix is in place.

[reeven]

i use mouses from 1993 but never have an double click problem with any mouse except Logitech.

I will never buy an Logitech again. When you pay 100euro/mouse that have cheap hardware, then..... judge yourself.

[MySchizoBuddy]

I tried taking out the battery and clicking and holding the left and right button for 30 seconds. 

didn't work.

I still double clicks instead of single click.