Q: Cursor is not responding and moving on its own

I don't know with yours, but resetting the SMC of my RMB worked for me.

Mac notebook computers that have a battery you should not remove include: MacBook Pro (Early 2009) and later, all models of MacBook Air, MacBook (Late 2009), and MacBook (Retina, 12-inch, Early 2015).

To reset the SMC:

1. Shut down the computer.
2. Plug in the MagSafe or USB-C power adapter to a power source and to your computer.
3. On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time.
4. Release all the keys and the power button at the same time.
5. Press the power button to turn on the computer.

My cursor was jumping around, opening everything it touched, as if it were pressing on them- it would happen after closing the top and coming back to wake it up.   I read this thread and decided to try to move the trackpad very slightly, as I noticed it was closer to one side than another, and depressed on one side.  I used a child's snap barrette, the small inner part- a thin flexible piece of flat metal-  to go around the trackpad, pulling it slowly and gently away from all sides so that it was even all around.  I turned the computer back on and---

So far so good- I've opened and closed the mac several times, been a whole day now- I think it's fixed!  thanks, blublud02!

whoa - that is so weird - my daughter was having this problem with her macbook air and I read out your instructions to her on the phone - worked immediately - she was hysterical with laughter that something so peculiar could have sorted it! Thanks a lot!

I've done just about everything and I just finished cleaning my track pad and then I heard something snap inside, But I think it did the trick... it's been a full day and my track pad hasn't gone haywire. Hope it holds out... if it doesn't I'll go to the Apple Store.

I just hope it doesn't cost me. the Warranty just expired and I have no insurance on it.

This worked!  Thanks, I was loosing my mind.
xo - Kat

This fixed my problem as well.  Thanks for sharing as it saved me time and $.

MMoving it fixed mine!

Every time trackpad acts up, i find kicking my dog fixes the issue . if that stops working, i'll try moving the trackpad slightly to the right

I had the same issue and solved it by pressing down the four corners of the trackpad all at once.

The pinky nail around the right edge as hard as possible seemed to have taken care of the issue!?  Thank you!!!

So happy this thread was here. My trackpad went out of control soon after I changed a battery so I thought it was the battery. But after reading this thread, I used a metal spudger and lightly inserted it in the space around the trackpad. A bit of dirt came up and I can see it's a bit more evenly distributed rather than being snug on the left side. And...it's magically working better, just like that.

Shout out to The Bookyard here in the UK which has loads of Mac spare parts and was nice enough on December 23rd to rush out out another battery for me to test instead of waiting for me to send the old one back to them to test. Got it on Christmas Eve. What compassionate service.

I tried this method and it worked for me. thanks. : )

Really weird but I just did this and it worked, so far!!  What is it that it does to the computer?

Surfer from woods hole: thanks so much for the tip.  My macbook trackpad stopped working after I ran a slightly damp cloth around the top to clean it of some dust and fingerprint marks etc.  Checked support on this and saw your reply. Tried doing the same, and it worked!  I did not have to press hard around the edge, just ran my nail around the edge - there seemed to have been something stuck at the edge (a tiny bit of dust/dirt) which came out when I did this.Thanks for the awesome tip.

This helped and I've been having this issue for weeks!!!! Thank you so much!!!!