AutoStrech problem with QR 2

Using QR 2.0j with Delphi 3

I use TQRDBText to print the content of a memo field.

With AutoStrech:=true the component grows and display all the data lines
but the Height property don't change.
The parent QRBand grows too but it's Height property don't change too.

I need the new height value to move the components below the TQRDBText.

Any idea ?