I go to the forums quite often now that I've found them, usually am on my PC If I am reading a thread there is no reply button there. So I click on "Log in", it tells me that I'm logged in as stdpoodad. I then have to click on Forums , then back to the thread. Do you know why it makes me do that?
I suggest you bookmark the login page though, that way you always enter the DTA forums by a route that recognises you are logged in and so it should cut out that particular frustrating glitch.