Typing on a laptop

[textmum]

When I type on my laptop I sometimes well fairly frequently - find that the text I am typing jumps to another line higher up the page. This happens on emails, word docs etc. Does anyone know why this happens, am I accidently hitting a specific key that causes this to happen?

[mushroom25]

are you using a mouse, or a "touch pad"?

My laptop did this until I got the IT boffins to disable the pad & give me a mouse.

[textmum]

I am using a touch pad

[rojash]

textmum, you've answered your own question. Touchpads are notoriously flaky; it may be flexing as you pound the keys, or perhaps you are accidentally brushing against it as you type.
Best answer is to disable it and plug a mouse in - they are also a lot easier to use!