Thanks for the reply.
There are no 3rd party extensions installed. Or at least i haven't installed anything after installing the siteshaper.
Yes i have tried different browsers.
I downloaded the siteshaper from here...
http://www.shape5.com/component/option,com_docman/Itemid,96/task,cat_view/gid,120/ ...so i assume it is the latest version
I have cleared the cache but still no luck. The problem occurs on both mediatemple servers and on localhost.
Do you have any other suggestions?