usps first class not working on order to switzerland

I just was contacted by a customer of mine today that is in switzerland and she said that she was only able to see in store pickup as the shipping method.

(note that priority and first class international mail are turned on in the mod i checked)

this is strange because i just got 2 orders yesterday from canada and australia and they both went through fine.

is the usps doing another mod update that i need to install.

i get the following error message on the first checkout page under the usps when i tested her account:

-2147218052 - The ounces field must be less than 5 digits

and there is nothing at all showing in the ups field but it does say the order weighs: 1 x 0.63lbs

can anyone please advise, i am currently running zen 1.3.9b

thanks!

Try editing the file:
/includes/modules/shipping/usps.php

and change the line:

    $shipping_ounces = zen_round($shipping_ounces, 3);

to read:

    $shipping_ounces = zen_round($shipping_ounces, 2);

Does this solve the problem? :unsure: