Maybe I'm just not coming up with the right search terms for this issue, 'cause I can't believe I'm the only one dealing with it. Apologies for redundancy, forthwith.
I've inherited management of a site from someone else, and I haven't logged in for most of this year. I updated to 3.5 last December and had no problems with it in the months following. *Note that I am probably lower than a newbie with this, as all my forum/support research keeps turning up jargon and procedures with which I am absolutely baffled!
When I logged in yesterday, the dashboard was all wonky and different-- most notably, all my usual boxes and sidebar tools were either gone or absent of their familiar entries: no more widgets, settings, pages, etc. (For example, under Tools, all I get is an invite to install Press This-- nothing else.) I have no links to the theme or any way to affect it, nor anything at all about plugins.
Most disturbingly, I cannot now edit or alter most of my posts. Where the posts/pages list normally shows all posts in blue, with "edit/quick edit/trash/view" links beneath, now, 19 out of 22 posts appear in black and not clickable, and the ONLY link that appears is "view." I have a Sticky page that I need to un-Sticky and put up a new one, and I cannot!
This is very bizarre and quite unexpected, since I haven't touched the site since its last successful use earlier this year. Does this sound familiar to anyone? Could there be a problem on the server side? I'm not controlling the hosting - that's on some server belonging to the previous owner.