Marvin, I just thought of something else relating to the blank screen under the site headings.
Last week my site was having problems pointed out by some fella in the Netherlands (of all places). I had Michele check, and she reported the same thing. My enlarged images were not loading after they clicked the thumbnail.
After my hosting site checked, they could not find a problem, so they thought the download was "timing" out before their browsers recognized them. So again, I think it leads back to a memory glitch somewhere.
I reduced the size and optimized the images and it seems to have fixed the problem. Of course I got carried away and added more.
Check into your "Apple system profiler" and try and open the forum after you boot with your extensions off, maybe there is a conflict. I am not sure if you just hold down the shift key with OS X.
Let us know if anything is working. Then please come straighten out all my Microsoft software!