James,
No that is actually why it is called fixed datagrid.
Simon,
You should win a prize for this. Some how you choose the one programmatic path that I missed a step in. Because you were using a layer with multiple relates and you did not define specific return fields for any of the relates the oid was not getting passed to the query... Anyway I have it fixed and will get it released ASAP. Thanks for using my new feature and helping me fine tune it.
Version 2.5.0.4 - 12/7/2011
* Fixed a relate query error that only occurred in certain situations