Hello,

our library mantains a cache of pointers to the html tags. To let Lightstreamer update moved elements you should move the entire element not just the id.
Btw, if you are already using a non-lightstreamer grid it could be better if instead of an OverwriteTable you use a NonVisualTable.
It's the same approach taken on this demo where a Dojo Grid is used to display the data: http://www.lightstreamer.com/dojoDemo.htm - http://app.lightstreamer.com/DojoDemo