When I type my text gets highlighted and then deleted.

I'm having this issue too. It did not happen to my Macbook when it was new, but happened after I sent my mac to applecare to get its trackpad replaced. It keeps overwriting what I say. I've tried toggling lots of settings.

This is commonly caused by your thumb heals getting too close to the trackpad. You are actually dragging over text and highlighting it, and repositioning the cursor.

On solution is to position your keyboard lower or your hands higher so that your hands stay further away from the trackpad.

Go to the Keyboard and Mouse System Preferences and chick the box called ignore accidental input. this MIGHT help but don't hold your breath.

The trackpad on the MB and MBP have a larger surface with more sensors than on previous laptops. As a result, when we type we have other fingers, thumbs etc. making contact with the trackpad and the trackpad receives input we don't intend. It happens to me quite often. So I hit Command + Z to undo and reposition the cursor. We need to train ourselves so that we keep our hands, palms, thumbs or other unnecessary body parts away from the trackpad while typing.

😉 cornelius

The point every body seems to be missing is that *you do not actually have to touch the trackpad* to make it react. Just being somewhat close to it can have the same affect as touching it.

The solution to the problem is to get further away from the trackpad. This will solve the problem. How far... it varies with every person. Only you will be able to answer it for you.

Gregory:

you do not actually have to touch the trackpad

I have been trying to test this. I find that at the outside edges the trackpad responds to only a single finger. I have to get a bit further in to get it to respond to a two finger tap. I don't understand how you can input anything to the trackpad without making contact. Do you mind expanding on this, please?

😉 cornelius

this happens to me too! i have no idea whats wrong with it. did u figure it out, because if you did i need to know! and i checked, im not accidently clicking the trackpad when it happens.