Okay, I've upgraded to 1.85 and now I get this error when trying to enter a subscription from the signup form:
admin-40-Unknown column 'textonly' in 'field list'
This is happening with all attempts, whether the email address is in the database or not, which mean that it's a major problem!
Additionally, when trying to access the config screen in the admin panel, I get this error:
Warning: mysql_fetch_row(): supplied argument is not a valid MySQL result resource in /home/powerkey/public_html/LM/editconf.php on line 1909
I'm going to roll back to 1.84 until we can come up with some answers on this.