Gremlins probably. I'm still thinking that my mistake was loading the Social Media mod before importing the database from my existing 1.1.0 site. My evidence of that is the error log -- stretching 100 pages in the Word file I saved it to -- which mentioned Social Media in every single error. "Unknown error type:  Cannot modify header information - headers already sent by (output started at hatatoriumemporium.com/includes/socialnetwork.php:58) on hatatoriumemporium.com/includes/stats.inc.php line 56." Those 100 pages of errors were all created in 1 day, with no one else on line, no one listing items, and mostly the site in maintenance mode. As soon as I uninstalled the mod, the errors stopped. I'm going to try reinstalling the mod now that I've got the new 1.1.1 site working. Wish me luck!