We were having an issue (Joomla 2.5, VirtueMart 2.0.20a) where if you added a product to the cart, went to the cart and clicked "Select Payment", the page was blank.
I THINK we fixed it by adding "Anonymous" and "Default" under Shop:Payment Methods:Payment Method Information Tab:Shopper Group field.
So, does this mean we have to have all the Shopper Groups for this page to show up?
Thx.