What is the small button on the left side of the mouse for

Usually either the lever (button) has slipped out of it's pivot point, the spring has come out, or the switch below the button is broken. To check, look around the edges for a small screwdriver slot or small screw. Open the mouse. Look at the button to see how it pivots. If on opening there are small pieces of plastic, discard the mouse. if it has just slipped out of its spot, realign and close the mouse, it should be good to go.

Remove the label under the battery, or just peel it back a little bit near the + sign towards the - side, it will reveal a small Philips screw that needs to be removed so top and bottom assemblies can be taken apart and expose the mouse internals. Applies to M325 only.

I have the same mouse. That button is CPI, or Counts Per Inch. It has two modes, a 500 CPI and a 1000 CPI. Both have to do with how responsive and zippy your mouse is when moving across the screen. If you click it, one should be twice as fast moving as the other.

you have a small button on either the left or right side of your power button. It will be orange if it is disabled. Press the button once and you should then be able to use your mouse.
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if you have the small 8.9 inch screen acer one, there is a button on either side of the touchpad...if you have the 11 inch acer one, the button isa one piece mouse button that pivots at its center point. Push on the right side to right click and push on the left side to left click.

Hi there, You feel hard because its broken from the inside. i guess if you press the right button from the end side( back side end of pressing location ) then some time it will work. Ok just turn back and open the small screw by screw driver. Then remove the casing. you should find 2 button look like small tap with black head or you can say its a radio button. press both button, if its working perfect and sound like a " tik tak" then you confirm that the button is ok. After that check the mouse casing press button. There you found a small plastic "dot" which is attached back side, with left & right side pressing button. If right side is missing then the "dot" button is broken, that's why you can't press the key. And some time its dislocate So if you do not find that "dot" plastic then i suggest you buy a new mouse or if its dislocate then try to fix it.
Thanks & waiting for your feedback.

This is a monitor setting. use the menu button on your monitor to shrink the screen size from side to side. The menu button usually toggles you through the settings and the + or - buttons adjust the settings.
This happens a lot if your on a small desk and bump your keyboard against a low sitting monitor.
Regards

Normal 0 The button on the left side of the mouse when pressed turns the Magnifier on/off. Just press it again and it should turn off.
I kept turning it on accidentally so I went in the control panel and switched the Magnifier to the right side. I added that below so you can set your mouse buttons.

Go to Control Panel and click on the Mouse icon. Then the mouse properties will appear showing the mouse buttons. In the Left column is the button settings. The bottom one is the Right Button, which is set for Magnify. Whenever you hit the Right Side button the magnifier will turn on. To turn it off, hit the Right Side Button and off it goes. You can change any of the button settings by clicking on the drop down.
Hope this helps. Bud

That can be tricky, but I have done it taking a really small flat head precission screwdriver and going along the edges. Just be go slow and careful. Another option would be to just get a USB mouse to hook to your laptop.

Normal 0 Press the Receiver button (and the lights will start flashing.
Then if the Keyboard isn't working, press the small RESET/CONNECT button on the back of the board to connect the keyboard to the receiver.

If the MOUSE isn’t working, push the small RESET/CONNECT button on the back of the mouse to connect to the receiver. Then they should work okay.
Hope this helps. Bud