Ken,
Loading up AP in IE 8 is bringing up dialogs about how my computer is infected with 50 billion bits of spyware blah blah blah. Clicking cancel brings up a link to
http://bestscanada.com/index.php?affid=93001 which has some nice trickery to make it look like it's scanning your machine, and how I must install some more spyware to remove it blah blah.
If this is coming from one of your official ad suppliers....could you get them to stop, please? :) Doesn't seem to affect Firefox, I only found out when a friend had a minor heart attack after seeing it.