I was once told these products have different directions based on which one you buy, so did you follow this packages directions or did you just do it the way you nomally do?
I too, have never had a problem and have used that brand before. Definitly call them, and please post your results here on this thread so we can all learn from what you found out! Who knows, you may find out you have a bad batch and it was suppossed to be pulled from the store?