Look up TOUCHFREEZE and see if that helps.
As to the failing touch pad, my thoughts and fixes are to disable such and use a mouse as repairs can get a bit out of hand.
Please help, the cursor on my Dell Latitude D600, running windows XP, keeps moving across the screen when I'm typing on the keyboard & then disappears into a corner or won't respond to the touch pad.
It appears to be affected by any form of pressure on the body/keyboard of the laptop.
What is causing this & can it easily be fixed?