Very odd behavior - I suspect this is a bug. I can solve it with a filter on the calculation set to special, non-null values.
Alex thanks for the response. I know I should know this (and I've seen the special, non-null values dialog box before) but I can't find access to it now . Obviously don't use it much. FYI: Searching for your solution I stumbled on jjust sticking the calc on the filter shelf and hard-filtering it to >.01 Like I said it looked like a stupid/easy problem.
But now that I've search, I'm doubly curious how to access the solution you mentioned.
PS: I agree that's probably not expected behavior (bug).
Never mind found it. Thanks,