@StevenBullen Looks good, the problem seems to be gone. Thanks.

Hello Steven, this extension is really great, I think, that this functionality has to be a part of basic install scripts.

But, there is a bug.

PunBB 1.3.4 UTF-8 - if the last character is for example í or š or ž or another from national characters, the extension will fail and nothing is written on the homepage (except the header and the footer).

Here is my solution:

$kolik = $forum_config['o_si_topic_length'];
             $text = $ext_si['subject'];
             $text_zacatek = substr($text, 0, $kolik);
             $mezera = explode (" ", substr($text, $kolik, ceil($kolik*0.5)));
             $text_cely = trim($text_zacatek.$mezera[0]);
             if($text_cely==$ext_si['subject']):
              $ext_si['subject'] = $text_cely;
             else:
              $ext_si['subject'] = $text_cely."&#8230";
             endif;
             //$ext_si['subject'] = substr($ext_si['subject'], 0, $forum_config['o_si_topic_length']).'&#8230';

In case, that the title is larger than defined length, find blank space and all before is the new title. Sorry for not writing the variable names in english.

Thank you, this extension is really great.