E-Newsletter, the sending status does not update


I have a problem with the e-Newsletter plugin.

When i send a newsletter, for example a test newsletter. I recive the email, but on the "progress" screen of the newsletter, it just keeps showing "The Newsletter was sent to 0 out of 1 members"

And the status is stuck at "Sending".

However, i have long since recived my email (the newsletter). But the status is stuck, and never budges..