fatal error - Kronolith 0.0.3

[Barjunk]

I have a working MySQL server that I am trying to use for Kronolith.  So far
I have a working horde/IMP/Turba installation.

I am having a heck of a time getting Kronolith to work.

right now I get a fatal error message:

object(db_error)(7) {
  ["error_message_prefix"]=>
  string(0) ""
  ["mode"]=>
  int(1)
  ["level"]=>
  int(1024)
  ["code"]=>
  int(-25)
  ["message"]=>
  string(29) "DB Error: extension not found"
  ["userinfo"]=>
  array(6) {
    ["phptype"]=>
    string(5) "mysql"
    ["hostspec"]=>
    string(12) "192.168.1.61"
    ["username"]=>
    string(5) "horde"
    ["password"]=>
    string(7) "*****"
    ["database"]=>
    string(5) "horde"
    ["table"]=>
    string(16) "kronolith_events"
  }
  ["callback"]=>
  NULL
}
[/var/www/html/horde/kronolith/lib/Driver/sql.php : 72]

What do I do now?  How can I figure out what is causing the problem?  From
what I can tell, it is not even talking to the MySQL server yet.

Mike