MC changed the include_path and extension_dir settings -- it appears there was an update in May, at which time these should have been changed but weren't. However, the app still won't work. There are two remaining settings that look wrong to me:

MYSQL_INCLUDE     no value
MYSQL_LIBS     no value 

On a phpinfo.php for PHP5, these show as:

MYSQL_INCLUDE     -I/usr/local/include/mysql
MYSQL_LIBS     -L/usr/local/lib/mysql -lmysqlclient 

I'm waiting to see if a fix to these will do the job. If not, we'll have to start picking carefully through every one of the settings, trying to figure out what might be wrong. The only other thing I can think of is that PEAR might be broken somehow in this new install.

In the long run, we should get Agenda shifted from PHP4 to PHP5. If this update was done in May, and we're the first to report that the paths were broken, then clearly hardly anyone is using it any more.