Hi!
I had the same symptoms... I solved this with code as bellow:
(box type PHP)
PHP Code:
if ( vB::$vbulletin->userinfo[userid] == 0 )
$cbox_nme = "";
else
{ $cbox_nme = urlencode(vB::$vbulletin->userinfo[username]);
$cbox_key = md5('XXXX-your-key-XXXX'.$cbox_nme); }
$return =
// "Test:".$cbox_nme."---".$cbox_key.
'<!-- BEGIN CBOX - www.cbox.ws - v001 -->
<div id="cboxdiv" style="text-align: center; line-height: 0">
<div><iframe frameborder="0" width="250" height="100" src="http://www6.cbox.ws/box/?boxid=579469&boxtag=pwftlz&sec=form&nme='.$cbox_nme.'&nmekey='.$cbox_key.'" marginheight="2" marginwidth="2" scrolling="no" allowtransparency="yes" name="cboxform6-579469" style="border:#DBE2ED 1px solid;border-bottom:0px" id="cboxform6-579469"></iframe></div>
<div><iframe frameborder="0" width="250" height="480" src="http://www6.cbox.ws/box/?boxid=579469&boxtag=pwftlz&sec=main" marginheight="2" marginwidth="2" scrolling="auto" allowtransparency="yes" name="cboxmain6-579469" style="border:#DBE2ED 1px solid;" id="cboxmain6-579469"></iframe></div>
</div>
<!-- END CBOX -->';
return $return;
one little problem it is delay after login/logout when chat-box determine change of state (logged user vs unlogged) :-(