I'm using Freebsd 6.2-STABLE, running WP 2.1.3 with the Flexible Uploads plugin, and php memory limit set to 16M. Previously all worked well, but after a server upgrade that included updates to php5 and php5-extensions, WordPress thumbnails don't generate anymore (tested with jpg, gif, png). Uploads all work, just no thumbnail.
gd is listed in php -m, but phpinfo() doesn't have gd.
Any tips would be much appreciated.