?itemid=101 - Problem with product display link

[gtcnetworking]

Hi I have a problem with product detail display that has only occurred recently. I am not sure quite what cause it.

Previously product detail display from listings worked fine. Now whenever I display a listing the link have an " ?itemid=101" added to the link. This cause the link to return to the home.

You can see the effect here
goto
https://www.nsoffice.com.au/index.php/component/virtuemart/view/category/virtuemart_category_id/360?Itemid=260

Then any link on that page has ?itemid=101 added

e.g.
https://www.nsoffice.com.au/index.php/component/virtuemart/view/productdetails/virtuemart_product_id/8498/virtuemart_category_id/385?Itemid=101

Can Anyone tell my why/where this 101 comes from ?

thanks in advance

[jenkinhill]

Did you action this?  http://forum.virtuemart.net/index.php?topic=149671.msg534700#msg534700