Automessage won't send immediately


I've set up automessage and it sends messages -- but it won't do it automatically or immediately.

I have a new registration email that's set to send immediately. The process is not paused. When users register, the messages just pile up in the queue and I have to click "process" to get them to send.

I'm running wp 3.5.1 and using the latest version of automessage.