I may be missing something. On my forum, I can log on without cookies but once I start to register a new user, I get an access denied message if my browser does not allow cookies. In this case, I see a "eye" icon in IE status bar.
You can try for yourself: please visit www.powershell.de and try and register yourself. You will receive the mentioned error message unless you explicitly allow cookies for that site.
This must be related to the fact that I use the forum inside a frameset. When I open the forum as a separate window, I do not get the error message. Is there anything I can do to prevent this? Thx!