I thought I'd done everything correctly, but something isn't working.
All I want to do is move the domain I used on a staging Magento to a Live Magento.
I created the new Website/Store View and categories in the Live Magento, enabled it and disabled the Store View in the Staging Magento.
I removed the DNS I thought I'd put in to point the domain at the Staging Magento.
I then added the domain name into the System > Config > General > Web > Un/Secure fields in the Live Magento, did a full re-index and Cache dump.
I'm getting "The web page at ****** might be temporarily down or it may have moved permanently to a new web address."
What have I missed?