I have just made a total upgrade of my ports tree and ran into some problems. One was that Horde or rather php couldnt load any dynamic libraries anymore. Don’t remember having any problems with that before. A search on hte net gave me the hint I needed. In the article “dBforums – unable to find php_mysql.dll” it is described how one should change extension_dir in /usr/local/etc/php.ini. After changing it to /usr/local/lib/php/20020429/ Horde installed nicely again.