only suggested it as I hadn't seen SFS mentioned in the previous troubleshooting
The "login" file which had the two single lines edited, was purely related to SFS. It was to help prevent a Spammer from logging in to your forum.
From:
Control Panel » Primary Settings
Stop Forum Spam tab
Stop Forum Spam provides free access to a database of known forum and blog spammers. UBB.threads can connect with this database to check Email Addresses and IP Addresses in an attempt to block known spammers from creating new accounts, and logging in to post on your forum.
