The Synaptics pointing device driver had gone corrupted.

Hello techyv.com!
I have here a Lenovo laptop, I have been using my touchpad for over a year already. Now it says that my Synaptics pointing device driver have been corrupted. Now my touchpad has started working weird, I can't seem to control it the way it should be. This starts when I'am using my laptop and suddenly there was a blackout. When I'd turned it on again, this problem appears. What should I do about this?
