More places to read about dangers of pine and cedar shavings: http://forums.compuserve.com/ContentLink.asp?SRV=Animals&FIDPOP=2930&H=350&W= Or look under Medline and look up Cyto;chrome P450, Phenolics, and aromatic hardwood shavings. Don't wait until it is too late to make an informed decision on this if you are using pine or any other aromatic shavings. Lost all my computer info. trying to straighten out a problem. So Hello again!!!!!!!!! Lisette [Posted in FML issue 3147]