I'm trying to develop a report that has Months along the row headers and Categories along the column headers, with a single measure. I have an outer join in place so that a Month gets pulled onto the report, even if there are no records for that Month in any of the Categories. The report displays zeros across the board. This is what I want so that all 12 months are displayed. The problem is Cognos is creating a null Category column with a zero count all the way down. Is this a known issue with the crosstabber? Is there something I can do to get rid of the null Category column? Thanks.