Hmmmm.... It sounds like you're having troubles all around.
The Internet Explorer issue sounds like Spyware, or just an IE Blunder. Easy to fix though! Browse Happy. (Firefox is best!!!)
Have you Spybot or AdAware for spyware removal?
Do you update the touchpad's drivers, or the touchpad's software? That might make a difference. Wait- can you use an external mouse? If you can, then that would rule out the possibility that the matter is a software one. In that case, the touchpad might be dying. Sorry.
We'll figure this out yet.