tmenu_layers & Fehlermeldung

Hi,
ich versuche gerade ein Layer Menü mit Tmenu Layers einzurichten. leider erhalte ich immer wieder eine fehlermeldung, die ich nicht wegbekomme ... nehme an, dass es mit der poitionierung des aufklappbaren menüs zusammenhängt ? verwende typo3 4.6.5

Fehlermeldung im Frontend wenn ich auf einen Untermenüpunkt klicke ... fehler tritt nicht immer auf ...
wenn der fehler auftritt dann klebt das menü links oben und nicht unterhalb des hauptmenüpunktes :

GLV_curLayerWidth["e33db7"]=0; GLV_curLayerHeight["e33db7"]=0; GLV_curLayerX["e33db7"]=0; GLV_curLayerY["e33db7"]=0; GLV_menuOn["e33db7"] = null; GLV_gap["e33db7"]=1; GLV_currentLayer["e33db7"] = null; GLV_currentROitem["e33db7"] = null; GLV_hasBeenOver["e33db7"]=0; GLV_doReset["e33db7"]=false; GLV_lastKey["e33db7"] = "Menue33db71"; GLV_onlyOnLoad["e33db7"] = 0; GLV_dontHideOnMouseUp["e33db7"] = 0; GLV_dontFollowMouse["e33db7"] = 0; GLV_date = new Date(); GLV_timeout["e33db7"] = GLV_date.getTime(); GLV_timeoutRef["e33db7"] = 250; GLV_menuXY["e33db7"] = new Array(); GLV_menuXY["e33db7"]["Menue33db70"] = new Array(0,0,"itemIDad2a77e613","anchorIDad2a77e613"); GLV_menuXY["e33db7"]["Menue33db71"] = new Array(0,0,"itemID1dc35b2706","anchorID1dc35b2706"); GLV_menuXY["e33db7"]["Menue33db72"] = new Array(0,0,"itemID3b526df70e","anchorID3b526df70e"); GLV_menuXY["e33db7"]["Menue33db73"] = new Arrayetc. .....

seite.includeLibs.tmenu_layers = typo3/sysext/cms/tslib/media/scripts/tmenu_layers.php

temp.tmenulayers= HMENU 
temp.tmenulayers { 
  1 = TMENU_LAYERS 
  1 { 
    wrap = <table cellspacing="0" cellpadding="0"><tr>|</tr></table> 
    layerStyle = position:absolute; VISIBILITY:hidden; background: #ffffff; 
    lockPosition = y 
    hideMenuWhenNotOver = 1 
    hideMenuTimer = 250 
    expAll = 1 
    leftOffset = 0 
    topOffset = 36 
    relativeToTriggerItem = 1  
    NO { 
      allWrap= |*||*| <td>|</td><td><img src="fileadmin/images/menue_spc.gif" ><td> || <td colspan="2">|</td>
      ATagParams=class="menue"
      ATagTitle.field = title
    } 
    ACT { 
      allWrap= |*||*| <td>|</td><td><img src="fileadmin/images/menue_spc.gif" ><td> || <td colspan="2">|</td>
      ATagParams=class="menue_active"
      ATagTitle.field = title
    }
    ACT = 1 
  } 
  2 = TMENU 
  2 { 
     wrap = <table cellspacing="0" cellpadding="0">|</table> 
     NO {
        expAll = 1          
        allWrap =  <tr bgcolor="#AFAFAF" ><td>|</td></tr><tr><td class="hr_menue_2"></td></tr>  
        ATagParams=class="menue_2"
        ATagTitle.field = title
     } 
  }
}

a.menue {
    font-weight:bold;
    display:block;
    text-decoration: none;
    color: #FFFFFF;
    text-transform: uppercase;
	font-size: 15px;
    height: 26px;
    text-align: left;
    padding-top: 8px;
    padding-left: 37px;
    padding-right: 37px;
    margin: 0px auto 0;
    background-image: url(../images/menue_bg.gif);
    background-repeat: repeat-x;
    background-position: left top;
}

a.menue:hover {
   font-weight:bold;
   display:block;
   color: #FFFFFF;
   text-decoration: none;
   text-transform: uppercase;
   font-size: 15px;
   height: 26px;
   text-align: left;
   padding-top: 8px;
   padding-left: 37px;
   padding-right: 37px;
   margin: 0px auto 0;
   background-image: url(../images/menue_bg_hover.gif);
   background-repeat: repeat-x;
   background-position: left top;
}

a.menue:active {
    font-weight:bold;
   display:block;
   color: #FFFFFF;
   text-decoration: none;
   text-transform: uppercase;
   font-size: 15px;
   height: 26px;
   text-align: left;
   padding-top: 8px;
   padding-left: 37px;
   padding-right: 37px;
   margin: 0px auto 0;
   background-image: url(../images/menue_bg_hover.gif);
   background-repeat: repeat-x;
   background-position: left top;
}

a.menue_active {
    font-weight:bold;
   display:block;
   color: #FFFFFF;
   text-decoration: none;
   text-transform: uppercase;
   font-size: 15px;
   height: 26px;
   text-align: left;
   padding-top: 8px;
   padding-right: 37px;
   padding-left: 37px;
   margin: 0px auto 0;
   background-image: url(../images/menue_bg_hover.gif);
   background-repeat: repeat-x;
   background-position: left top;
}

Wie kann ich den Fehler beheben ?

Thx