well, it seems I’m in the same hole, getting the error
Fatal error: Call to undefined function: require_wp_db()
Based on the above comments, I deleted and reloaded all of the wp-admin and wp-includes folders/files and also the top level files.
I edited the wp-config file to add the “secret_key” entry that’s now in the sample.
No old stuff hanging around expect the plugins and themes and stuff in wp-content (yes, I did copy in the files out of the zip).
Any other clues as to what might be causing the problem? I was upgrading from the previous version which worked fine until this install a couple of hours ago.
