I can be typing a document in any program and the cursor will jump back to the middle of the sentence while I am typing. How should I fix this

This download solved it for me on two notebooks:
touchfreeze - Google Code

Hope that helps.

What it does is disable the touchpad while you are typing. I type at about 200 wpm and this was driving me crazy until I found Touchfreeze.

Seahawk,

200 WPM? God, that's sickening! Why, I can manage at least 30 - 40 words a week! :)

Don, you have to put down the beer and use two hands, I had the same problem till I found some 4 foot long straws, USAF oil sample tubes, wash and reuse, lifetime use.