Ok, now I've seen everything. Popup ads that looks like fake DOS prompts! For all I know these things could've been around for months, because I usually block these kinds of things in Mozilla.

For anybody else who hasn't seen one, here is what it looked like.

As indicated by the MSIE image dialog, the whole ad is one big picture. These guys obviously never heard of scr2htm. I don't think I've ever seen a real DOS prompt with an "OK" button, either..