[Plugin ALO EasyMail Newsletter] Gets stuck while subscribing.

Hey guys,
I am a fan of this plugin. More so after v2.

I am using this pluging on several of my wordpress sites and it works well except on one.

I tried to install the v2 on this url:
http://www.cent erforinn ersciences.or g/newsletter [remove spaces]

Visit the above link and try submitting your name and email. It shows the rotating loading image and says “sending…” and keeps on doing that forever.

What do you think the problem is?

I compared the source files of the one on a working page and this one, everything’s same.
I compared the source code too. All the header script and form code is same.
Settings too are same.
Both running on same wordpress (3.1.1)

Tried deleting and re-installing too.

Though, this one is on a separate server. Can it be related to that?

Please help me find where the problem is. And once that’s done, provide a solution 🙂

My job is stuck due to this. Need to sort this out asap.

Thanks a lot.

Jugal