Unable to save changes to Column Properties.

Unable to save changes to Column Properties.

I am editing the "Child's Registration Full Database View" for my GHF Camp Registration 2010" application. I am in column properties and try to save changes after asking to sum various number fields. I am unable to save the changes. Nothing happens when I click "Done". I have had this problem before and it still is there. It is a simple operation that should make a users life easier. I also tried to click the "Custom Actions" link and it does not work.