Anyone encountered this? Currently happening in 2.6.1, but the problem began with 2.5 - I can't delete anything within WordPress. Posts, users, comments - no go. I appear to be getting a nonce error (I think):
Are you sure you want to do this?
Please try again.
Yes, I do indeed have DELETE permissions for my MySQL user.
I tried creating a new admin user to see if it was a problem related to my user account - no go, same problem. And now, I can't delete the new user I created, haha.
The URL for the error page looks like this: