Address Style Validation - US - Postal Code

Hi,

We are implementing for the UK and when setting up the address book for a supplier, selecting U.S.A. as the country we receive the Error Please enter valid address elements: POSTAL_CODE

We are completing:

Address Line 1: TEST ADDRESS

City: Seattle

County: Default

State: WA

Postal Code: WA98119

Address Name: MAIN

Any ideas on how I can sort out this issue? The Postal Code appears in the invoice sent by the supplier.....

Thanks,

cv