REASSEMBLE THE MOUSE HAVING TROUBLR WITH THE SCROLL WHEEL ASSEMBLY / IS THERE A DIAGRM ON THESE?

Disconnect the mouse from the computer and turn it upside down. The screws to disassemble the mouse are under the pads on the bottom of the mouse. When you disassemble the mouse, you will find that the scroll wheel axle is gummed up, and the interruptor wheel is probably dirty. Use an old tooth brush and alcohol to clean the scroll wheel components, and let the components dry. You can use glue to re-attach the pads after you have reassembled the mouse.

See http://www.fixya.com/support/t6886053-took_m_raf95_mouse.

You just need to ensure the springs and wheel are housed correctly.

Check that the "scroll" wheel is not "stuck" in the "down" position.

If it is stuck, then a "click" on the left button is being interpreted as a "click" on BOTH the LEFT and the SCROLL buttons.

Hello there:
If you remove the battery cover you will see 2 small phillips head screws remove them and this will allow the part that goes around the wheel to be removed now make sure that there is no lint or dust build up around the wheel assembly canned air works great for cleaning these out then reassemble the cover and test
Now if it still doesent work than you can assume that the controle sensor for the wheel is bad in this case if you still have the warranty i would take the mouse back and exchange it for a new one
To have this repaired would cost more than what the mouse is worth ok
I hope this is very helpful for you
Best regards Michael

Because you don't list what model Logitech cordless mouse you have, look in this list to see if yours is on it. If it is, click on the link and download and install the driver. This download has the latest drivers and SetPoint software for Logitech cordless, wireless and Bluetooth pointing devices (mouse).
http://www.softwarepatch.com/utilities/logisetpoint-dl.html
Specifically the mouse driver is for the following models:

• Anywhere Mouse MX
  
• Cordless Mini Optical Mouse
  
• Cordless Optical Mouse
  
• Cordless Optical TrackMan
  
• Cordless TrackMan Optical
  
• Cordless TrackMan Wheel
  
• G1 Optical Mouse
  
• G3 Laser Mouse
  
• G5 Laser Mouse
  
• G500 Gaming Mouse
  
• G7 Laser Cordless Mouse
  
• G9 Laser Mouse
  
• G9x Laser Mouse
  
• LS1
  
• LX3
  
• LX3 Plus Laser
  
• LX5
  
• LX6
  
• LX7
  
• LX8
  
• M110
  
• M205
  
• M305
  
• M500
  
• M505
  
• M555b
  
• M705
  
• MX 610
  
• MX 610 Left-Hand
  
• MX 620
  
• MX Revolution
  
• MX1100
  
• Optical Mouse
  
• Performance Mouse MX
  
• Racer Mouse
  
• Spot Mouse
  
• Tiger Mouse
  
• Trackman Marble
  
• TrackMan Wheel
  
• Trackman Wheel
  
• V100
  
• V150
  
• V200
  
• V220
  
• V320
  
• V400
  
• V450
  
• V470
  
• V500
  
• V550
  
• VX Nano
  
• VX Revolution
  
• Zebra Mouse

I hope this helps and good luck!
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in fact this one is one of my Favorite Combo set, change with the the fresh bettery, link the mouse again, clean the mouse wheel with the cleaner I think it'll work.

Most opticals do not track on smooth white surfaces. It needs textures or color. Try pressing the "CONNECT" button on the bottom of the mouse and on the remote sensor.

go to control center, mouse properties, use the wheel-tab, and set lines to scroll to 1.

You should make sure that you have the LX7 Setpoint software installed to set the features you want. For the scroll button or button three if pressed, I have mine set to zoom (first selection). The scroll function of the wheel should be automatic. Go the mouse movement settings and set the scroll size to 6 lines. That should allow you to scroll your pages adequately. If this helps send a reply for others to view.

its usually for most wireless equipment, press and hold the reciever button for a few seconds then press the button underneath the mouse, for it to kick in, but have windows loaded to desktop when you try it.. All the best John