problema con AdoDataset

[[Caral]]

Hola
Que complicado lo veo, pero bueno:
Tal vez asi:

Código Delphi [-]
with formdepartamento do
begin
PathBD := ExtractFilePath(Application.ExeName);
CadenaConexion := 'Provider=Microsoft.Jet.OLEDB.4.0;Data Source=' + PathBD + 'data.mdb';
DataSetreportdep.ConnectionString := CadenaConexion;
DataSetreportdep.Close;
DataSetreportdep.CommandText := 'select * from principal' + ' WHERE (((principal.departamento)=''' + Formparametros.Combodepa.Text + ''' ))';;
DataSetreportdep.Open;
begin
QRDBdep.Caption := DataSetreportdep.fieldbyname('Departamento').value;
QRDBuser.Caption := DataSetreportdep.fieldbyname('usuario').value;
QRDBsetup.Caption := DataSetreportdep.fieldbyname('setup').value;
QRDBred.Caption := DataSetreportdep.fieldbyname('red').value;
QRDBref.Caption := DataSetreportdep.fieldbyname('Refrescador').value;
QRDBcorreo.Caption := DataSetreportdep.fieldbyname('correo').value;
QuickRep1.Preview;

Es lo que se me ocurre.
Saludos