This happens a lot with text pasted in from Word. My solution is always to paste the stuff in to Text Edit, in plain text mode, first then copy it out of there and in to Quark. Then all styling is lost and Quark's colours etc will take properly.
Why it happens I can't recall - something to do with the way MS software auto-colours stuff I think. Any danger your email program is an MS offering?
Greg
I think therefore I am, you're pink therefore you're spam