This sounds like it belongs in feedback. Unwanted popups like this can be a pain. It might have to do with cookies or maybe you don't have a popup blocker...or one properly "trained" to arrest the one you're seeing. I'd gotten that one in the past. There is one I'll also get if not logged in automatically. Good luck.
Didn't know where to put this. I've said no thanks, I've filled it in, and still it hounds me on every page.