I'm almost finish to the project that im doing. Suddenly I'm having a problem with my report. I putted the fields in the group header / footer where the stored information of the database must be desplayed in the report. It has an error of "Report sections do not match data source". The idnumber and name of the client must not be repeated that's why i putted it on the group header / footer; it must the data only which i putted in the detail section of the report designer.