I'm using a theme called Core. I have two web sites

I'm using a theme called Core. I have two web sites currently running this theme.

On one, the contact page works just fine: after submitting, I get an email with all of the info and the user gets a thank you message.

On the other, the contact page doesn't do anything. It just refreshes.

The code in both contact pages are identical. Any ideas?

I'm new to WPMU and so far this forum has not yet helped me to resolve an issue. I'll try one more time. So far, not my best money spent for 2013!

Thanks