I've been poking around in the forums, and quite often when I click "Next Topic" it either reloads the same topic, or I get an error that reads "Error - The forum/topic you selected does not exist. Please go back and try again. If the page does not automatically reload, please click here"

This has happened using Firefox and IE 6.0SP2.

Also, the "Forum Options" and "Search Forum" dropdown menus show up behind any other dropdown menus. For an example, go into any topic, then choose "View digest" from the Forum Options dropdown. Then try to view the Forum Options dropdown again, and you'll see what I mean.