Hi: I am tryin to create and expression using the value of the REPORT_COUNT variable, so when the MOD value of REPORT_COUNT is equal to 0, change the background color of a text field. Im thinking to put this expression: ($V{REPORT_COUNT}.intValue() % 3) == 0 but it seems to not been working and gives me this error: Cannot cast from boolean to Boolean I am not sure what this supposed to mean. I hope you can help me. Alfonso Flores Morán.