search/node has HTML-filled tab

It caused by function names troll_search.
Try to rename the function and also update the caller will fix the problem.

or

instead of using this function, let the caller call directly to drupal_get_form('troll_search_form');:

//      $output = troll_search();
      $output = drupal_get_form('troll_search_form');

and comment out this function:

/**
 * Form builder function
 *
 * @uses troll_search_form()
 * @return string

function troll_search() {
  return drupal_get_form('troll_search_form');
}
 */

Glad to help.
BTW thanks for this great Troll module. =)

This seems to have reappeared in 5.x-1.2, so the fix will need to be reapplied there.

The symptom is that the html for the form appears in the tab for the search form. The fix is as described above.

This was fixed in CVS but I had not made a new release
with the fix. I made a new release now so check out
5.x-1.3