I've looked at many posts here but haven't been able to glean an answer from them, so I apologize if this is redundant.
I deleted/updated the files as the WordPress.org instructions directed. I ran the upgrade, and was told the upgrade was successful. I went to the login page, which had the new look. After clicking submit with my credentials, I'm brought to the /wp-admin/ directory. The page is blank. A quick look at the source and nothing is being served.
I do not have access to error logs with my host.
Any thoughts? Something with .htaccess maybe (which I can't see in my FTP software WS_FTPpro)