Drupal Pressflow problem with hook_block -

i'm having troubles implementing hook_block hook in clean pressflow installation. reason outputs arrayarray blocks. reason $info variable in theme function set to:

["block"]=> array(7) { ["function"]=> string(10) "fwtb_block" ["include files"]=> array(0) { } ["type"]=> string(12) "theme_engine" ["theme path"]=> string(21) "sites/all/themes/fwtb" ["arguments"]=> array(1) {   ["block"]=>   null } ["theme paths"]=> array(2) {   [0]=>   string(14) "modules/system"   [1]=>   string(21) "sites/all/themes/fwtb" } ["preprocess functions"]=> array(2) {   [0]=>   string(19) "template_preprocess"   [1]=>   string(25) "template_preprocess_block" } 

}

as can see overwritten custom hook_block method. thinks blocks should rendered using fwtb_block method returns array containing subject , content. that's why prints arrayarray. idea going wrong here?

this hook_block implementation:

function fwtb_block($op = 'list', $delta = 0, $edit = array()) { switch ($op) {   case 'list':     $blocks['sidebar_description'] = array(       'info' => t('sidebar description'),       'cache' => block_cache_global,       'status' => true,       'region' => 'left',       'visibility' => 0,       'custom' => false     );     return $blocks;   case 'configure':     $form = array();     return $form;   case 'save':     return;   case 'view': default:     switch ($delta) {       case 'sidebar_description':         $block['subject'] = t('block_subject');         $block['content'] = t('block_description');         break;     }     return $block; } 

}

kind regards, daan

after taking fresh setup saw problem was. had theme , module same name. caused conflicts :/