[support] Changing Views Title

[Ms. Nancy Wichmann]

I found http://drupal.org/node/1176080 which explains how to alter the title of a View, but it doesn't seem to work (especially in Views 7.x-3.x-dev). I have my title specified as "Studies: %1" which works fine except when there is no argument. If the argument is not present, I display all values and want the title to say "Studies: All". Can anyone help me fix this, please?

In hook_views_pre_render(), I have tried both of these options:
  $view->build_info['substitutions'] = array('%1' => t('All'));
  $view->build_info['title'] = str_replace('%1', t('All'), $view->build_info['title']);
Neither worked; I still get "%1" displayed.
 
Nancy 
Injustice anywhere is a threat to justice everywhere. -- Dr. Martin L. King, Jr.
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