Make sure Script Debugging is enabled, and make sure "Display a notification about every script error" is unchecked in IE aswell. If i'm correct, you should'nt see that error again.
the problem is, i'm a web developer and i don't like to disable it because it tells me that there are errors in my works. i already enabled script debugging but seems it's still there. anyway, ever since ao has been redesigned, i've been seeing this. i never cease to browse anyway. just a little annoying. it's just some 2 clicks every page, not much. ciao!
i checked the codes and it seems to me that some opening remarks hasn't been closed.