Web site is broken, out of the blue. Spent an hour trying to figure out what the hell happened, and finally figured out that my host has apparently switched from Apache to Litespeed, which is *not* a 1:1 replacement for Apache. I rely on some .htaccess directives that Litespeed does not implement. Fantastic. As far as I can tell this migration wasn't announced anywhere? Going to bed now, but I really did not want to spend my Thursday doing emergency repairs on my Web sites.