Version 2.0.15
Don't know what happened. I was ftping some ID badges for new members of the Mod Team. Did some last night and had to go to bed...no problems last night. Continuing now with other themes and editing an old one, so replacing the old with new.
Went back to forum and

. My menu buttons are sort of gone--admin, moderate, profile... Later saw that if I hover over the top they show up--small with no label. I think I got to the search function, but clicking admin or profile just gets me to a page with my theme and no content--header stuff, limited menu and then two horizontal bars.
Same thing when I clicked on the ! to approve a post.
Menu buttons for posting now have no labels--got lucky and chose the right one. Same for submitting. After submitting it took me to that blank page again...but breadcrumbs were still there for the board, so I got back and the post had gone through.
Seriously, what did I do?