[ic] Checkout page not working

[Chad Burkhart]

I have IC 4.8 running on a Linux 7.2 box with 2 catalogs.
The first works perfectly, but the virtual domain I just added won't 
process the checkout page.
I can't seem to find out what is different between the two.
When you click checkout, it just returns to the checkout page without any 
errors.....but it sends the receipt to the customer.
Any ideas?
Is there any special setup for a virtual domain?