i use bugs.gentoo.org quite often, and never had any pb with it but today, it keeps on asking me for login/password. each time, he's happy with my password, i can see the 'my bugs' at bottom (which show i'm recognised), but a few click later, it asks me again, and again, and again of course, my cookies are enabled. I have been using bugs.gentoo.org for quite some time,remember! Reproducible: Always Steps to Reproduce: 1. 2. 3. i've just switched to ipv6, and it might be related to that, but i have no clue....
For your info, it seems the pb was related to the browser i used (konqueror from kde 3.1.2). It works fine with MozillaFirebird. I'm updating kde to check...