Why Magic Mouse curser does not move?

Easy solution : I got the same issue with my magic mouse 2. scroll works well but curson moving like drunken guy. when i saw the bottom of the mouse the lazer light is also clear. but i just took a small tissue and wiped those bulbs to make sure. then its started working nicely , then i found the reason that the laser bulbs are covered with some cream or oil, it can be anything , just try wiping the bulb @mouse bottom using some tissue paper , it should work.

"Jan 23, 2013 11:42 AM in response to henryfromgreen cove springs

Had the same problem. Here's the process I went through to getting it working again:

Tried fresh batteries. Clicks worked, but no mouse tracking.

Another set of fresh batteries. The same result.

Tried removing and re-adding the mouse in the Bluetooth Preferences. No difference.

Found a blog post that suggested cleaning the battery contacts. Mine looked nice and shiny, but I scrubbed them anyway. Still no good.

Went into Bluetooth preferences, highlighted the mouse then under the gear menu, clicked ""Update Services"" then ""Monitor Connection RSSI"". Monitor Connection RSSI opened a new window with a graph. It took a few seconds for it to start plotting data, but as soon as it did, the mouse began working correctly.

OR

Feb 1, 2013 12:14 AM in response to henryfromgreen cove springs

Delete the extension named USBOverdrive.kext in the extensions folder under \System\Library\Extensions. Restart the computer and it work."

"Sometimes the Bluetooth mouse and sometimes even the USB wired mouse stops moving properly.

That is usually caused when the laser lens gets dirty.

Get a Q-tip or a small cloth like from a cotton tee shirt. Moisten it with rubbing alcohol, (not the drinking kind). Clean the lens thoroughly, then try the mouse again. If it still does not move, and the batteries are good, then its time for a new mouse."