Can't Login into main Page

[Paradoxolyth]

So, i can Login into the Forums, but whenever i try to Log in on the main page it wont let me, i have no addblocks or scriptblocks active, it is the right email adress and the right password. it just throws me back to the login area, and if i try to login in a few time's My IP gets temporarly banned. if someone has a solution for this problem, then i, finally, could enter this Prime Give Away

[Arkvold]

In the upper right you'll see your username.  Click on that little down-arrow next to it, and click "Sign out."  Then attempt to sign in on the main site.

I have this problem from time to time - it's an issue with the forums and the main site having conflicts with regard to session cookies.