One of my readers brought it to my attention that single post pages were being "cut" right after the post content. No comment form, no sidebar.
While I was logged in to my blog, I could see the comment form and sidebars normally.
I logged out, saw the problem, and now I can't log back in: wp-login.php throws a blank page.
The problem arose less than two days ago. I haven't installed plugins or knowingly tinkered with my installation in that time -- just posted a new post last night.
I'm still using 2.0.x -- maybe it's time to upgrade? But I can't get in to deactivate my plugins before doing it.
Any help will be welcome.