[imp] Imp and Turba odd error

[Geoff Sweet]

Horde 2.2.5
imp 3.2.3
turba 1.2.2

With turba installed, and setup with in Imp as the address book manager,
I can quite successfully add address book entries, search them, and
browse them.  However when I go to the Imp Compose window, and select on
"Address Book"  I only get a blank pop-up window:

http://www.whootis.com/pics/address_bookerror.png

Any clue?  The source-code for this window is blank as well.

Below is my some config file settings:

imp/config/conf.php:
// This is an array of applications (using the names defined in
// horde/config/registry.php) to include links to in the menubar. An
// example providing a link to Turba (an addressbook program) would
// be: $conf['menu']['apps'] = array('turba');
$conf['menu']['apps'] = array('turba');

imp/config/prefs.php:
// addressbook(s) to use when expanding addresses
// You can provide default values this way (note the \t and the double
quotes):
// 'value' => "source_one\tsource_two"
// refer to turba/config/sources.php for possible source values
$_prefs['search_sources'] = array(
    'value' => 'localsql',
    'locked' => false,
    'shared' => false,
    'type' => 'implicit'
);

horde/config/sources.php:
/**
 * A local address book in an SQL database. This implements a per-user
 * address book.
 *
 * Be sure to create a turba_objects table in your Horde database
 * from the schema in turba/scripts/drivers/turba.sql if you use
 * this source.
 */
$cfgSources['localsql'] = array(
    'title' => 'My Addressbook',
    'type' => 'sql',
    'params' => array(
        'phptype' => 'mysql',
        'hostspec' => 'localhost',
        'username' => 'horde',
        'password' => '*******',
        'database' => 'horde',
        'table' => 'turba_objects'
    ),
    'map' => array(
        '__key' => 'object_id',
        '__owner' => 'owner_id',
        '__type' => 'object_type',
        '__members' => 'object_members',
        'name' => 'object_name',
        'email' => 'object_email',
        'homeAddress' => 'object_homeaddress',
        'workAddress' => 'object_workaddress',
        'homePhone' => 'object_homephone',
        'workPhone' => 'object_workphone',
        'cellPhone' => 'object_cellphone',
        'fax' => 'object_fax',
        'title' => 'object_title',
        'company' => 'object_company',
        'notes' => 'object_notes'
    ),
    'search' => array(
        'name',
        'email'
    ),
    'strict' => array(
        'object_id'
    ),
    'public' => false,
    'readonly' => false,
    'admin' => array(),
    'export' => true
);