USPS International Express not showing?

[kcates]

I just noticed that USPS International Express is not showing as a shipping option in my store. Is anyone else seeing this? That is, if it's something external, then I don't want to starting poking anything. Other methods seem to show fine.

Vital info: Merchant 4.22, USPS Advanced by Viking, CBS Shipping Supermod. No recent changes to the configuration.

Thanks!
Ken