Yesterday, everything was working fine. I was using version 2.1.3 (yes, I know how old it was), and I could log in to my site admin and view my dashboard no problem.
Today I came across something I wanted to talk about on my blog, so I attempted to go to my dashboard to write a new post, and my dashboard page wouldn't load. Well, it loaded for a split second, then disappeared. Refreshing the page (even shift+refresh) didn't help, but if I re-entered the address in the address bar of my browser and hit "enter", then it would load... for a second before disappearing.
Using F6 to select my address bar and hitting enter, I was able to quickly load the page with my mouses's cursor in position to click fast enough to catch the "write a new post" link in my dashboard before the page disappeared. But then my post editing buttons were missing! I couldn't even access the tab to go to "code" view to write my own html to achieve the look I wanted... I couldn't include links!
So I assumed I was being forced to upgrade to a newer version of WP.
Dutifully, I backed up my database, downloaded the newest version of WP (2.9.1), removed the old version, installed the new version, and tested my site. Everything was working just fine... except... I still can't see my main dashboard page (for more than a second).
All pages within my admin area work except wp-admin/index.php, and I don't know anything about php to see what the problem is.