Daniel,
The Lighter Menus plugin was causing this problem for me in 2.8.1. I discovered it by deactivating all plugins, and reactivating them in batches until the problem recurred, then narrowing down from there.
FWIW.
Mark.
Sorry, I don’t understand. What site are you referring to? Are you reinstalling wordpress?
It’s working now. Did you do something to fix it? I have the same problem.