Just got my PC back online after 6 months of not have a ISP at home. Now when attempt to log in to AR15.com with my Zone Alarm on it just returns to the log in screen. Also blocks the adverisers in the upper right corner. I have played with the cookie and ad control and only got the baner ads back, still kicks me out of being logged in when I refresh or move a page.  

Any ideas?

My girlfriend's computer had the same problem a few weeks ago.  I figured out that she was running zone alarm as her firewall program but also had norton internet security also running.  I got rid of norton internet security and it immediately let us log in to whatever we wanted.