[Cobra-J82]

I think its in template:
postbit_attachmentthumbnail


This is What I have

<a href="attachment.php?$session[sessionurl]attachmentid=$attachment[attachmentid]&amp;d=$attachment[dateline]" rel="Lightbox" id="attachment$attachment[attachmentid]"<if condition="$show['newwindow']"> target="_blank"</if>><img class="thumbnail" src="attachment.php?$session[sessionurl]attachmentid=$attachment[attachmentid]&amp;stc=1&amp;thumb=1&amp;d=$attachment[thumbnail_dateline]" border="0" alt="<phrase 1="$attachment[filename]" 2="$attachment[counter]" 3="$attachment[filesize]" 4="$attachment[attachmentid]">$vbphrase[image_larger_version_x_y_z]</phrase>" /></a>
&nbsp;<if condition="$show['br']"><br /><br /></if>

I tested on my website and removed the whole text from this template
all attachment in topc disappeard
looks like this is what you are looking for.

--------------- Added [DATE]1223849168[/DATE] at [TIME]1223849168[/TIME] ---------------

Im sorry I didnt see what nando wrote
I suggest making a back up of your postbit_attachmentthumbnail

And then copy my postbit_attachmentthumbnail and paste it over yours

If it worked leave it
If something wierd happens, copy and paste you back up on it.

Cheers.