Evan, the varname on the field in the report is cntramt. I don't have it prefixed with an alias however the name is the same in both the first temporary table and the summary table that I create and use in the report. Could that be the problem? I thought that since my report was only using the second table that I didn't have to qualify the field names (ie. only one table active so no need to qualify).

In your example you capitalize the first letter of each word in the field name. Does case actually differentiate two fields with the same name?