Hi Calvin,
Thanks for your reply.
Yes – unfortunately I’m positive it is a theme problem because I already tried that – disabling all other plugins to make sure there was no conflict and I have subscribed many times with dummy emails. They are always properly saved in the db but I just don’t get that message on the screen that says “congratulations”. It just goes blank in that area. The other reason I know it is theme related is because if I load the other WordPress themes that come with the WordPress installation (I think it’s called twenty-one?), it works great! Following subscription there is a nice little soft yellow message that appears telling the user to check his/her inbox.
I really hope in can solve this because it’s the only problem left!