Thanks David, but this problem is not that. It can happen with a brand new DD and he has waited considerably longer than I ever would fit it to load. There is every possibility it’s some kind of issue with his setup or Internet, but I don’t think he is seeing other issues that would highlight the cause.
I have DDs that have a lot of rules and branches and they do take a little bit longer to load, but still load in a few seconds for me.