Product review (5 stars): Fixed the problem
If your ice dispenser is building up ice in the dispenser mechanism, look up where the ice comes out and see if the little door is closing completely.  If it is not, then that is your problem.  Warm air comes in there, melting ice shavings and dust, and then it re-freezes solid.  Get this kit and follow the installation directions and you will be back in business.  Don't forget to de-frost any ice-clogged parts in the freezer.  Small hands are a plus for this install, and searching the Net for more directions and pictures helps too, especially with getting the outer trim off to get started.