Corey Thompson sent me an email message this morning asking me about the popups on my website. I responded that I don't have any but I would investigate. Well, investigate I did and by checking file dates, I found the one file that somehow was altered to add an iframe to the top of the displayed page.
I found the iframe by viewing the browser source, but it took me more than an hour to find out which file had been altered. It was the WP-Cache configuration file. I checked the directory and file permissions. Everything was in order and I can't figure out how the file got altered. Well, I have an idea, but I have to wait and see if it happens again to confirm my suspicions.
