I actually have the same problem on windows 7 and IE. 1 in 10 times it logs me in, the rest of the time it just brings me to the forum page.

I haven't had a problem with Google chrome though.

I'm guessing it is a cookies setting on my computer.
Without a doubt, the hardest thing of all in a survival situation is to cook without the benefit of seasonings and flavourings. - Ray Mears