Seaside tutorial question..

Hi all again.. I'm trying out the Seaside tutorial that is on the cincom
site and when I try updating the decrease method using the web browser
based system browser (I'm using the free VisualWorks environment) and then
hit the accept button I get a message above the text area that says :

Message not understood: #asSym

It does in fact seem to save my updates and everything else works fine, but the
message is a bit confusing as I'm not sure where it's coming from..  Can someone
please enlighten me?

Thanks!