Index: install.php
===================================================================
RCS file: /cvs/drupal/drupal/install.php,v
retrieving revision 1.146
diff -u -r1.146 install.php
--- install.php	24 Nov 2008 10:41:39 -0000	1.146
+++ install.php	13 Dec 2008 05:12:47 -0000
@@ -312,14 +312,14 @@
     );
 
     // Table prefix
-    $db_prefix = ($profile == 'default') ? 'drupal_' : $profile . '_';
+    $db_prefix = ($profile == 'default') ? 'dru_' : $profile . '_';
     $form['advanced_options']['db_prefix'] = array(
       '#type' => 'textfield',
       '#title' => st('Table prefix'),
       '#default_value' => '',
       '#size' => 45,
       '#maxlength' => 45,
-      '#description' => st('If more than one application will be sharing this database, enter a table prefix such as %prefix for your @drupal site here.', array('@drupal' => drupal_install_profile_name(), '%prefix' => $db_prefix)),
+      '#description' => st('In some cases a table prefix such as %prefix is necessary. This includes sharing the same database with other applications, or compatibility with certain database types. A length of four characters should usually not be exceeded.', array('%prefix' => $db_prefix)),
     );
 
     $form['save'] = array(