I'm going to be starting a 4e campaign in the next couple of weeks.
I have a copy of the 4e DM's Screen with the update, and I also purchased the DM"s Toolkit and Monster Vault this past week, just so that I would have portable copies of the books with me.
I was comparing the two DM Screens, and saw that there were quite a few differences, mostly in the Damage By Level, DCs for skills and breaking things, and DC by Level.
So with this, I'm wondering which screen I should use. My players are new to 4e (but not D&D in general), and we're not playing Essentials (though I am going to be using some of the material from the books as I see fit, mostly with monsters).