No, don't think so -- I don't play with anything along those lines. I'm thinking it's much more likely related to Netscape 4.73. (I did say "ancient". You thought I was kidding. Popup blocker? I settle for avoiding sites with popups when I'm on this machine.) ) I do have a Firefox on here, & don't see it with that, FWIW.
I will spare you AND our bandwidth a post containing all 359 graphics which popped the top of our site in 2007, but if you're interested, you can plug your favourite dates into http://the-w.com/images/2007/07xxxx.jpg and pull them down on your own.