[TYPO3-shop] Error, You do not have all...

[Maarten ten Brinke]

Hi,

I have tt_products 2.8.0 (latest dev version) running and I have a case 
that when I check-out my basket, I fill in my customer information and 
proceed to checkout (for the overview, prior to payment). When I then 
return from this overview to the shop and try to check-out through the 
process again, the shop doesn't accept the customer information anymore. 
It gives the error:

"Error

You do not have all the required fields with your address information 
filled in, or the terms are not accepted!"

It looks like a cookie issue, but I'm not sure, can anyone confirm this 
issue, or is it something in my setup?

Thanx,

Maarten