So every once in a while, my laptop's touchpad seems to go haywire, and the cursor will start jumping around and jerk to the right side of the screen. When I try to get it back to where I want it to, it's sometimes completely unresponsive, and won't move at all. This can last for up to 30 minutes per occurrence, and it happens frequently enough to be an inconvenience. Are there any things that might be causing this other than me just having a possibly defective touchpad?
Also why does the link in my signature display the top left corner instead of the bottom left corner?