Miscellaneous laptop discussions : Scroll/Mouse lock possible??

Scroll/Mouse lock possible??

Please help.

I am on bedrest and so am stuck using my husbands laptop for internet access. While it runs fine, it is annoying the heck out of me with the "scrolling" it does. Every now and then when I'm tying or using the "mousepad" (the little pad IN the actual laptop) my screen will start to scroll up or down. I realize that I must be using/rubbing the mousepad in such a way to cause it, but I wonder if I can "lock-out" that feature somehow. I don't even know exactly what the feature is, so I'm having a hard time looking for answers.

Thanks,
wmdaniels