Yep, that was the fix, the server was assuming EU channels and I'm using currently using US channels.
With that in mind, I also assume that I can't use both my US and my EU gateways at the same time, the server has to be configured for one or the other?
Maybe as a feature enhancement - allow configuration of channel sets on a per gateway - instead of per server?
I'm probably in the minority of users, in that I'm testing both US and EU setups. (I obviously was testing my US setup first)
Thanks again for the quick response!