Cursor freezes intermittently...

Hi, I have a new MBP and while I like it very much, the cursor freezes up intermittently, sometimes for ten seconds or so at a time, and all I can do is wait until it comes back to life. Swiping back and forth on the trackpad to "wake it up" seems to have no effect.

This happens when I'm writing in Word, but also happens other times. It is so annoying that I mostly use the mouse, which detracts greatly from the mobile computer experience.

I have done a clean install of OSX and also reset PRAM to no avail.

I had to swap out my machine initially for dead and stuck pixels on the screen, so I really don't want to be "that guy" who keeps swapping systems out, but since I have a week left in my initial 14 return policy I am considering returning it and buying a white macbook, instead, because that is what I had before and it worked flawlessly.

Does anyone know the cure for the cursor freeze?

and

If there is no cursor, is Apple likely to charge a restocking fee if I return it with the 14 day period?

Thanks!