Did you come across the problem where mouse cursor automatically jumps to a different location when you type some text? It doesn’t matter where you are typing, you might be typing in word or any other documents. If you search about this problem on internet, you can find there are many people facing the same problem while using a laptop with touchpad.
In the first place, most of the users may think that their hands are touching the touchpad accidentally when they type texts in document but it is not. If you look at the Internet, you can see that the problem is reported by laptop users, so it is definitely a problem with some laptops which they are using high sensitive touchpad.
I found a freeware which can cure this problem for you. It has been suggested by lots of people in many forums and community.
TouchFreeze is a freeware which disables the touchpad of your laptop when you start typing. Since the touchpad is disabled, the cursor will not jump automatically while typing. It is very simple to install and use as it does not required any other configuration. You can download it from http://code.google.com/p/touchfreeze/.
If you are facing this problem, just give a try this program and write your feedback on comments. Also you can share if there is any other solution for this annoying and irritating problem.
Note: There is some setting in touchpad driver program to adjust the sensitivity of touchpad. Before you try the third party application, just check those settings in your Laptop.