Okay, thanks for your help. I reuploaded wp-admin and wp-includes, and am no longer getting error messages, but I’m getting a repeat of the problem I had prior to upgrading – when I try to login, it just loops back to the login page. Doesn’t say the password is wrong, doesn’t give me any kind of error, just goes back to the login page and refuses to go to the wp-admin directory. Any ideas what this might be? I’ve cleared cache and I’m accepting cookies.
Thanks, but after reuploading, I simply got another error:
Warning: require(/home/somethin/public_html/zonkered/wp-includes/shortcodes.php) [function.require]: failed to open stream: No such file or directory in /home/somethin/public_html/zonkered/wp-settings.php on line 277
Fatal error: require() [function.require]: Failed opening required ‘/home/somethin/public_html/zonkered/wp-includes/shortcodes.php’ (include_path=’.:/usr/lib/php:/usr/local/lib/php’) in /home/somethin/public_html/zonkered/wp-settings.php on line 277
I’ve uplooaded everything – twice.