Does it happen also if you use an external (USB or wireless) keyboard?
If it only happens with the built-in keyboard, replace that.
I'm using asus laptop windows 7.
why when I type (p, 1, 9, 8, 7, 4, 3, 2 or press backspace), my cursor jumps backwards to the beginning of text. other alphabets or number not affected.
I did not accidently touch the touch pad.
Help me please