🚀 go-pugleaf

This is a very, VERY narrow question; but I'll throw it out here in
hopes that someone can answer it.

I have access to the monster.com resume database.  In Firefox 2, or in
Internet Explorer 6, when I have a list of resumes in monster, then
click on a link to view a resume in detail, the link immediately turns
purple (to indicate it's been visited), and a purple gif with the word
"visited" appears by the link.

I recently upgraded to Firefox 3 and cannot get either to happen (that
is, the link does not change color, and no "visited" gif appears by
links I've visited).  Same thing in IE 7, which isn't my primary
browser.  I've had friends who have FF2 or IE6 try this and they still
get the purple links and the purple gifs.

EXCEPT in monster, every visited page link displays as expected,
generally turning a different color.  I have no malware on my
computers (I've tried this on multiple computers, using different
internet providers), and there is nothing else odd about my computers
and their browsers.

I doubt too many people reading this use the monster resume database,
but I am hoping that someone can explain to me some subtle difference
between the FF3/2 browsers and IE7/6 browsers that would explain
this.  My cookie settings in FF3 are what they were in FF2; I can't
think of any cookie/password/anything setting that would explain this
difference.

Ideas?