Symptoms:
- Can’t view ANY previous Posts, but the correct totals are listed by class – published, draft….
- When creating a new post – no save or publish button
- Unable to administer ANY plug-ins – error message: You do not have sufficient permissions to access this page
What Has Changed?
Upgraded from 3.0.2 to 3.0.1 or something like that, I was clearly on 3.x
What Have I Attempted?
- validated the roles and access values were correct for the admin user in database tables
- Created a new admin
- Changed admin user values to something else and back
- Changed to default template
- Disabled ALL plug-ins
- Re-installed latest version
What would you do next?
I had some problems upgrading to 3.0.3 on a multi-site installation. I had used the automatic upgrade and it failed, but luckily, downloading and extracting the new files from WP.org and uploading them directly fixed it. I would try that first. If that doesn’t work, try re-uploading your backup files. You did make a backup, right?