TYPING PROBLEM CURSOR GOING BACKWARDS

samatistas wrote:

Unfortunately, I've already done that.

My keyboard is already replaced because of "Shift" key did not respond in a consistent manner.

But this didn't solve this problem...

Uninstall any and all third party Antivirus, Cleaners, Optimizers, VPN, speeder uppers....

 To trouble shoot further you can:

 —Try a SafeBoot https://support.apple.com/en-us/HT201262

  Takes noticeable longer to get to the login screen, does a 5-15 minute disk repair before it fully boots up, and certain system caches get cleared and rebuilt, including dynamic loader cache,  etc. 

   Login and test. Reboot  as normal and test as caches get rebuilt.

In Safe mode third party system modifications and system accelerations are disabled, it removes malware, etc hampering smooth operation, however a  reboot will put it back to normal mode.

This test will tell you if third party interference; extensions etc are not loaded in safe boot mode. 

 —Test issue in another user (or guest user) account  https://support.apple.com/en-us/HT204443

  This will tell you if it a universal issue or isolated to your user/admin account. 

samatistas wrote:

MacBook Pro (13-inch, 2016, Two Thunderbolt 3 ports), with MacOS Big Sur Version 11.2.3 installed.

I have a cursor problem when typing either in Mail, or Pages, or in webrowsers... even here...

after typing just a few letters my cursor goes back automatically... in various places...

And this is going on for at least 3 years.... in various MacOS versions

NO I am not touching the trackpad at all while typing...

Please can anyone help, as this is very frustrating (being a writer for living, it makes my life miserable).

And a message for Apple: Please make Mac better, not worse...

You must have the patience of a Saint—

See if you can qualify here for a hardware issue:

https://support.apple.com/keyboard-service-program-for-mac-notebooks

Call Customer Support (800) MY–APPLE (800–692–7753)

or on line https://getsupport.apple.com/

or call AppleCare Support at 1-800-APLCARE (800-275-2273)

Outside the USA—Contact Apple for support and service by phone

See a list of Apple phone numbers around the world.

https://support.apple.com/en-us/HT201232

Learn how to get your Mac fixed and how much it will cost.

https://support.apple.com/mac/repair/service

Get your Mac ready for service - Apple Support https://support.apple.com/en-us/HT209095

Have you selected Arabic/Hebrew. Check your input source preferences.

Change Keyboard Input Sources preferences on Mac - Apple Support

Do you have the same problem if you use an external keyboard (doesn't have to be from Apple)?