I installed the cart as directed and followed all the instructions. Everything seems to work. its in the modules. it shows up on my site. i put it on. I have the google account, entered all the ID info etc.
when i make a test order, i can see googlecheckout on my sites checkout site, when i choose it, and click confirm to confirm the order, it doesnt do anything. Just sends me back to the beginning of the checkout process where it says, Your order is not complete, please click on the checkout button to finish your order.
when you click the button it starts the checkout process again, and goes into a perpetual loop. i read about 40 pages in this thread, but didnt see anything to help.
anyone?

i am using 1.3.8a
the only addons i have is the security patch.
standard template, standard install.
my site is www.vinyljunkiedistro.com