Hi All -

I've been trying to get this going all night - I upgraded zen to the latest version and downloaded the latest, full build of GoogleCheckout ... it works OK except it won't compute the USPS calculated postage properly.

On the cart pages, the shipping estimator works fine for USPS realtime rates. But when you use GoogleCheckout, it doesn't add the shipping - even though I have it configured. And in the GoogleCheckout settings, when I open the Shipping Methods Generator to test, it gives me the following error:
Fatal error: Cannot redeclare class usps in /home/httpd/vhosts/getskinsnow.com/httpdocs/includes/modules/shipping/usps.php on line 798

Any help? There are no other usps.php files in the /shipping folder - I've already made sure. I removed all usps.php files and re-uploaded from the download, same problem.

Help!