Claris Resolve: Calculations not Updating Correctly

I have a calculation based on the result of the 'Distribution' function. But when I update my distribution criteria, the calculation does not update. What is going wrong?
This information was provided by Claris Corporation on 16 March 1998, and incorporated into Apple Computer's Tech Info Library.
Some calculations in Claris Resolve 1.X do not update automatically. Sometimes you can force an update by selecting 'Calculate Now' -- even though the 'Auto Calc' feature is turned on. Otherwise, you have to reenter the calculation to force the update.
Published Date: Feb 18, 2012