Not sure when it happened, but I can no longer mark a forum section as read.
I click the "forum tools" pull down, click on the "mark this forum read" button, and it doesn't do anything.
Running Firefox 3.0.1 on Windows XP SP3 with the following extensions installed:
CacheIt! 1.0
ColorZilla 2.0
Firebug 1.2.0b6
Gmail Notifier 0.6.3.5
Web Developer 1.1.5
NoScript 1.7.7 (all scripts enabled for PHP Builder and sites)
HTML Validator 0.8.5.2
Which is all rather useless information, as it doesn't work in IE7 or Opera 9.51 either.