It relates to an incorrect library reference (still need to track it down).  I changed my HTML to pull the latest js from the infragistics site and the grid now displays as expected.

    <!– Ignite UI Required Combined JavaScript Files –>

    <script src="http://cdn-na.infragistics.com/igniteui/2014.2/latest/js/infragistics.core.js"></script&gt;

    <script src="http://cdn-na.infragistics.com/igniteui/2014.2/latest/js/infragistics.dv.js"></script&gt;

    <script src="http://cdn-na.infragistics.com/igniteui/2014.2/latest/js/infragistics.lob.js"></script&gt;

The "Uncaught TypeError…" just seems a little strange to me, I guess I would have expected an error indicating failure to load a file.

Peter,

I tried as you suggested, but I am still receiving the "prior to initialization" error?

<script>function lstSourceCharacteristicValuesSearch() {
var x = document.getElementById("sbSourceCharacteristicValues").value;
if($("#lstSourceCharacteristicValues_table").data("igGrid")!=null) {
$("#lstSourceCharacteristicValues_table").igGridFiltering("destroy");
$("#lstSourceCharacteristicValues_table").igGridFiltering("filter", ([{fieldName: "lookup_display", expr: x, cond: "contains"}]));
}
}</script><div id="sbSourceCharacteristicValueslstSourceCharacteristicValues" style="position:abosolute; left:50px; top:625px; width:400px; height:48px; z-index:4;" class="SearchBox"><input type="text" id="sbSourceCharacteristicValues" onkeyup="lstSourceCharacteristicValuesSearch()"></div></div>
</div>