problem with staying logged in

Hi I’ve been having a problem staying logged in at this website. When I get to the main page, I click the login link at the top of the page, and then choose to login using my Google account. After that I’m back to the main page again and it says I’m logged in at the top right corner of the page. I then click on the link that takes me to the Q&A forum. I wanted to make a reply to a thread I started earlier today, but when I click on the link to that thread, it then says at the top on the black bar that I’m not logged in and I can’t make a reply until I do so. I gone through re-logging in multiple times and I still get to the same problem when I get to the page with my post. There’s some unseen error behind the scenes that keeps logging me out as I navigate through this website. Any help would be greatly appreciated. Thanks.

Your browser is caching the non-logged-in pages. After logging in, Shift+Refresh, or delete your browser’s cache.