Esta demostración:http://www.ok-soft-gmbh.com/jqGrid/LocalFormEditing.htm no funciona correctamente si actualizo el javascript incluido, a la última versión de jqGrid.

<link rel="stylesheet" type="text/css" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.10/themes/redmond/jquery-ui.css" />
<link rel="stylesheet" type="text/css" href="http://www.ok-soft-gmbh.com/jqGrid/jquery.jqGrid-4.4.1/css/ui.jqgrid.css" />

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.5.1/jquery.min.js"></script>
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.10/jquery-ui.min.js"></script>
<script type="text/javascript" src="http://www.ok-soft-gmbh.com/jqGrid/jquery.jqGrid-4.4.1/src/i18n/grid.locale-en.js"></script>
<script type="text/javascript" src="http://www.ok-soft-gmbh.com/jqGrid/jquery.jqGrid-4.4.1/src/grid.base.js"></script>
<script type="text/javascript" src="http://www.ok-soft-gmbh.com/jqGrid/jquery.jqGrid-4.4.1/src/grid.common.js"></script>
<script type="text/javascript" src="http://www.ok-soft-gmbh.com/jqGrid/jquery.jqGrid-4.4.1/src/grid.formedit.js"></script>
<script type="text/javascript" src="http://www.ok-soft-gmbh.com/jqGrid/jquery.jqGrid-4.4.1/src/grid.inlinedit.js"></script>
<script type="text/javascript" src="http://www.ok-soft-gmbh.com/jqGrid/jquery.jqGrid-4.4.1/src/grid.celledit.js"></script>
<script type="text/javascript" src="http://www.ok-soft-gmbh.com/jqGrid/jquery.jqGrid-4.4.1/src/grid.subgrid.js"></script>
<script type="text/javascript" src="http://www.ok-soft-gmbh.com/jqGrid/jquery.jqGrid-4.4.1/src/grid.treegrid.js"></script>
<script type="text/javascript" src="http://www.ok-soft-gmbh.com/jqGrid/jquery.jqGrid-4.4.1/src/grid.grouping.js"></script>
<script type="text/javascript" src="http://www.ok-soft-gmbh.com/jqGrid/jquery.jqGrid-4.4.1/src/grid.custom.js"></script>
<script type="text/javascript" src="http://www.ok-soft-gmbh.com/jqGrid/jquery.jqGrid-4.4.1/src/jquery.fmatter.js"></script>
<script type="text/javascript" src="http://www.ok-soft-gmbh.com/jqGrid/jquery.jqGrid-4.4.1/src/jquery.searchFilter.js"></script>
<script type="text/javascript" src="http://www.ok-soft-gmbh.com/jqGrid/jquery.jqGrid-4.4.1/src/grid.jqueryui.js"></script>
<script type="text/javascript" src="http://www.ok-soft-gmbh.com/jqGrid/jquery.jqGrid-4.4.1/src/jqDnR.js"></script>
<script type="text/javascript" src="http://www.ok-soft-gmbh.com/jqGrid/jquery.jqGrid-4.4.1/src/jqModal.js"></script>
<!--<script type="text/javascript" src="http://www.ok-soft-gmbh.com/jqGrid/jquery.jqGrid-4.4.1/js/i18n/grid.locale-en.js"></script>
<script type="text/javascript" src="http://www.ok-soft-gmbh.com/jqGrid/jquery.jqGrid-4.4.1/js/jquery.jqGrid.min.js"></script>-->

El principal problema es cuando agrego el registro, la ID de TR es mala. ¿Alguna actualización de esto?