Bread-Bakers v104.n043.5

If the stone is older than 3 years old and PC won't replace it, chuck 
it.  Buy the real deal.  Go to http://www.kingarthurflour.com/  and search 
for "baking stone".  Their stone has a lifetime warranty against 
breakage.  I love mine.

Your Fellow Bread Baking Fiend,

Pedro