You asked "In version 9,8 the search for date (this month) does not work who has news will be appreciate the very many thanks"
You can define a calculated type field with a formula that will result in 1 if it is this month and a 0 if it is not.
IsThisMonth = If(Month(datefield) = Month(Today()) and Year(datefield) = Year(Today()),1,0)
Sue Sloan