Well, that was exciting.
After having a rogue script inserted somewhere in the web-site, which kept modifying a .htaccess file every hour or so that pointed visitors to porn sites and other inappropriate pages, I had to reinstall WordPress and just have it all cleaned. The site was off-and-on for about a week, which was annoying to both me and you. Backing up the files and restoring everything was a painless task, though.
So here is to a safe and clean web-site! Thank you for your patience!