I set "default_flat_rate_shipping" to...
Status: On
Cost: 20.00
Location: Canada
Tax Class: (I've tried --none-- and Taxable Goods both)
Storefront Icon: (I've tried it with and without)
Auto Select: (I've tried it checked and unchecked)
Accept these payment types: (checked the one I have)
Sort Order: (tried 0,1,and 2)
I have free shipping enabled for the USA, as well as FedEx and UPS options also enabled (all of which are working fine).
Tried a Google search of course, no luck.
There's nothing more I can think to try, so I thought I'd try asking for some help.