Scott M wrote:
After upgrading from 1.7 to 1.8.1, my wiki no longer has any special pages. I can't even login now because the UserLogin special page is missing.
Are you running PHP 5.x on an x86_64 (AMD64) machine? If so, upgrade to PHP 5.1. Older versions of PHP are broken on 64-bit, which ends up corrupting data.
-- brion vibber (brion @ pobox.com)