TFS 2012 - Product backlog missing future iterations & unable to forecast

Question

I have two questions:

1. According to this article if I define some future iterations (i.e. iterations with dates set in the future) then I should see them listed on the left hand side under the heading 'Future'. But I don't see anything:

   

2. I assume this problem is related, but I'm hoping to get the forecasting setup as per this article, but as shown in the screen shot below I'm getting an error.

Answer 1

Are the future iterations checked? There is a checkbox next to iterations in Iterations window - see screenshot.