From Dive into Mark May 4, 2002
"The Q tag was added in the original version of HTML 4, and has therefore
been around for over 4 years. The specification mandates that browsers "must
ensure that the content of the Q element is rendered with delimiting
quotation marks". I did a little testing, and all modern browsers do this...
except Internet Explorer on Windows. Yeah, the one with 70% market share.
Even IE 6 doesn't display quotation marks; content in a Q tag just looks
like everything else. Shit."
I know it doesn't work in IE5.5, and Opera 6.6 seems to think it should add
two extra double quotes on the end of the passage. I think you are stuck
with blockquote for semantically correct and consistently supported html