Jeff,

I am getting a series of 3 to 10 in-page-error messages at the top of the forum pages only:

Warning: Cannot modify header information - headers already sent by (output started at /home/amduser/public_html/themes/amdusers/theme.php:202) in /home/amduser/public_html/includes/sessions.php on line xxx

It started around the time the site was upgraded but I also think my instance of Firefox 1.0 is stuffed because I am also getting rendering errors as well and they don't show up all the time in IE.

I am going to dump this install of Firefox tomorrow and re-download & install it again and see how I go.