Is it possible to do a "hard reset" on trackpad driver to solve erratic trackpad behaviour: clicks but no movement

I have a 13" MBP mid-2011 which has some trackpad issues. Every once in a while (can not replicate this reliably) the trackpad "freezes" after waking up. It will click (can select text or click buttons if pointer happens to be on them) but no movement is recognised.

Sometimes it helps to put the computer back to sleep and wake up again, other times PRAM reset helps, but again sometimes there is just no remedy other than using a USB mouse for a while until the device seemingly decides that it's done enough tomfoolery..

I am wondering if I can do some sort of a "hard reset" or "reload" on the modules that govern trackpad function.

Suggestions?