On Sun, 6 Sep 2009 04:01:11 -0700 (PDT), Andy Evans
wrote:

Can anyone help with this - I'm on Google groups and in Firefox and
Safari (I'm on a Mac) I get a sidebar down thew left which obscures
the first part of the posts. Anybody had this and know of a fix?
Happens on all groups, not just this.

If you'd just upgraded to Snow Leopard you'd have mentioned it, of
course?