I've got some problems with my app.

1. I've got a combo as a field of one of my grids:
It works as i want, but when i select one of the results and i blur my combo, it shows the id...

There is the code:
            header: "Empleado",
            width: 200,
            sortable: true, 
            dataIndex: 'Empleado',
            editor: new Ext.grid.GridEditor(new Ext.form.ComboBox({
                store: new Ext.data.JsonStore({
                    url: '../contratos/gestionEmpleados.php',
                    root: 'filas',
                    baseParams: parametros,    
                    fields: ['id', 'nombre'],
                    totalProperty: "results"
                typeAhead: true,
                valueField: 'id',
                mode: 'remote',
                hideTrigger: true,
                minChars: 1,
                maxChars: 9,
                forceSelection: true,
                triggerAction: 'all',

2. I've got 2 grids from the same controller (an own controller). If i comment one of them, the other one works fine, but when i use both, it just works the second one. When i select an item from the first grid, it selects the second one.

Do you know why is it? i tried to render my grids in different panels but it didn't work...

Thanks a lot!