Have troubles with .install, from the first chapter of Pro Drupal Development (table does not create automatically)

When I run the query manually in the SQL-window, then it works perfect, and it also stores the data correctly.

But my problem is, that 'Drupal' dont see the .install file..
Thus also you are correctly that you think its the .install file.

Okay here he is:

Annotate.info

; $Id$ 
name = Annotate 
description = Allows users to annotate nodes. 
package = Example 
version = "$Name$"

Annotate.install

<?php 
// $Id$ 

function annotate_install() { 
  drupal_set_message(t('Beginning installation of annotate module.')); 
  switch ($GLOBALS['db_type']) { 
    case 'mysql': 
    case 'mysqli': 
      db_query("CREATE TABLE annotations ( 
        uid int NOT NULL default 0, 
        nid int NOT NULL default 0, 
        note longtext NOT NULL, 
        timestamp int(11) NOT NULL default 0, 
        PRIMARY KEY  (uid, nid) 
        ) /*!40100 DEFAULT CHARACTER SET utf8 */;" 
      ); 
      $success = TRUE; 
      break; 
    case 'pgsql': 
      db_query("CREATE TABLE annotations ( 
        uid int NOT NULL DEFAULT 0, 
        nid int NOT NULL DEFAULT 0, 
        note text NOT NULL, 
        timestamp int NOT NULL DEFAULT 0, 
        PRIMARY KEY  (uid, nid) 
        );" 
      ); 
      $success = TRUE; 
      break; 
    default: 
      drupal_set_message(t('Unsupported database.')); 
  }
   
  if ($success) { 
    drupal_set_message(t('The module installed tables successfully.')); 
  } 
  else { 
    drupal_set_message(t('The installation of the annotate module was unsuccessful.'),'error'); 
  } 
}

Annotate.module

<?php 
// $Id$ 
/** 
 * @file 
 * Lets users add private annotations to nodes. 
 * 
 * Adds a text field when a node is displayed 
 * so that authenticated users may make notes. 
 */ 

/** 
 * Implementation of hook_menu(). 
 */ 
function annotate_menu($may_cache) { 
  $items = array(); 
  if ($may_cache) { 
    $items[] = array( 
      'path' => 'admin/settings/annotate', 
      'title' => t('Annotation settings'), 
      'description' => t('Change how annotations behave.'), 
      'callback' => 'drupal_get_form', 
      'callback arguments' => array('annotate_admin_settings'), 
      'access' => user_access('administer site configuration') 
    ); 
  } 
  return $items; 
} 

/** 
 * Define the settings form. 
 */ 
function annotate_admin_settings() { 
  $form['annotate_nodetypes'] = array( 
    '#type' => 'checkboxes', 
    '#title' => t('Users may annotate these node types'), 
    '#options' => node_get_types('names'), 
    '#default_value' => variable_get('annotate_nodetypes', array('story')), 
    '#description' => t('A text field will be available on these node types to make user-specific notes.'), 
  ); 
  $form['array_filter'] = array('#type' => 'hidden'); 
  return system_settings_form($form); 
} 

/** 
 * Implementation of hook_nodeapi(). 
 */ 
function annotate_nodeapi(&$node, $op, $teaser, $page) { 
  switch ($op) { 
    case 'view': 
      global $user; 
      // If only the node summary is being displayed, or if the 
      // user is an anonymous user (not logged in), abort.
      if ($teaser || $user->uid == 0) { 
        break; 
      } 
      $types_to_annotate = variable_get('annotate_nodetypes', array('story')); 
      if (!in_array($node->type, $types_to_annotate)) { 
        break; 
      } 
      
      // Get previously saved note, if any. 
      $result = db_query("SELECT note FROM {annotations} WHERE uid = %d AND nid = %d", $user->uid, $node->nid); 
      $node->annotation = db_result($result); 
      
      // Add our form as a content item.
      $node->content['annotation_form'] = array( 
        '#value' => drupal_get_form('annotate_entry_form', $node), 
        '#weight' => 10 
      ); 
  } 
} 

/** 
 * Define the form for entering an annotation. 
 */ 
function annotate_entry_form($node) { 
  $form['annotate'] = array( 
    '#type' => 'fieldset', 
    '#title' => t('Annotations') 
  ); 
  $form['annotate']['nid'] = array( 
    '#type' => 'value', 
    '#value' => $node->nid 
  ); 
  $form['annotate']['note'] = array( 
    '#type' => 'textarea', 
    '#title' => t('Notes'), 
    '#default_value' => $node->annotation, 
    '#description' => t('Make your personal annotations about this content here. Only you (and the site administrator) will be able to see them.') 
  ); 
  $form['annotate']['submit'] = array( 
    '#type' => 'submit', 
    '#value' => t('Update') 
  ); 
  return $form; 
} 

/* 
 * Save the annotation to the database. 
 */ 
function annotate_entry_form_submit($form_id, $form_values) { 
  global $user; 
  $nid = $form_values['nid']; 
  $note = $form_values['note']; 
  db_query("DELETE FROM {annotations} WHERE uid = %d and nid = %d", $user->uid, $nid); 
  db_query("INSERT INTO {annotations} (uid, nid, note, timestamp) VALUES (%d, %d, '%s', %d)", $user->uid, $nid, $note, time()); 
  drupal_set_message(t('Your annotation was saved.')); 
}

I know its a long code, but please help me out. I cant find the prob you know, and I think its all good.

Thanks before guys!