Could be w3c; I can't be bothered to look them up at the moment though.
Inconsistancies could lie in different versions, different inerpetations of what you said, or what 'they' said, or prehaps other reasons. Either way, if you are using a title tag for such a reason, you really are not using it for what it is for

Also, inconsistancies in versions are kinda funny, because firefox has a new version out every once in a while; when was the last IE update?

Whee. And no, Unne and I are two very different people with completely polar views on most everything in life, except what matters; computers.