I'll go a head and try that and let you know the results. Here are the errors I'm getting on checkout and in my logs:
<?xml version="1.0"?>
<IntlRateResponse><Package ID="0"><Error><Number>-2147218046</Number><Source>IntlPostage:clsIntlPostage:ValidateCountryName:clsIntlPostage:CalcAllPostage;IntlRate.ProcessRequest</Source><Description>Invalid Country Name</Description><HelpFile></HelpFile><HelpContext>1000440</HelpContext></Error></Package></IntlRateResponse>Type php
Date Wednesday, April 2, 2008 - 20:30
User jason
Location h**p://siteaddress/cart/checkout/shipping/quote
Referrer h**p://siteaddress/cart/checkout
Message Attempt to assign property of non-object in /var/www/web94/web/sites/all/modules/ubercart/shipping/uc_usps/uc_usps.module on line 399.
Severity error
Hostname MyIPADDRESS
Joined: 01/18/2008