Until it's propagated to me, I can't do a full test of the forum. I can manually navigate to it using it's IP address - however - the settings have to reflect the actual domain. So while I can navigate to it with the IP - all the links now say umsf.com/whatever - which means I can't test the functionality as that still points to the old server.
To make a visual differentiation between what should, in essence, be identical websites - I have add ' THE OLD SERVER' in red stamped text over the banner on the top left of the old server. If you ctrl-refresh, you will probably still see that.
Once I'm NOT seeing it, it means I'm pointing at the new server, and I can check the settings - add a post, delete a post, add an attachment, go to the admin section, and re-open the forum.