Not sure causes this problem but when I start to type a email I suddenly find the words I am typing are appearing amongst words I have already typed.If I keep typing and then look to perhaps check the spelling I find some of the words are mixed up with earlier words so then I have to try and sort it out by deleting those words and retyping them in the right place.Any advice appreciated.Thanks
I don't know which OS you are using. In Windows 7 - start - type in mouse and you get an option to click on 'change how your mouse works' - click on it - scroll down to mouse settings - click on pointer options and you will see the option to hide pointer when typing.
Here is a link showing how to do it in Windows 10.
Reading through several posts about the same problem a lot of posters had their problem solved by installing TouchFreeze. It is designed to disable the touchpad whilst typing. I haven't tried this out myself.