[Lazarus] DBEdit, DBMemo all readonly = true ! Whi?

[OsvaldoTCF]

Ubuntu Gutsy 
GTK2 and GTK
Lazarus svn 14266

My DBEdit and my DBMemo is readonly, i need a workaround for continue my
work:

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procedure TfrmAluno.FormActivate(Sender: TObject);
var
contador : integer;
begin
    for contador := 0 to ComponentCount - 1 do
  begin
     if ((Components[contador] is TCustomEdit) and
(Components[contador].Tag <> 111)) then
     (Components[contador] as TCustomEdit).ReadOnly := false;
  end;

end;
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