SDE features update but not the feature-linked annotation

Question

Using VS2005 & arcgis desktop 92, I successfully updated SDE point feature attributes from a shapefile field like this:
...editor.StartOperation();
....
SdeFeature.set_Value(idxSDEanno2Fld, ShpFeature.get_Value(idxSHPanno2Fld));
SdeFeature.Store();
....
editor.StopOperation();

when I check the data, the new attribute values are present in the SDE features I updated. For some reason the attribute changes didn't carry over to the feature linked anno. When I manually change an attribute thru the attrib window the feature & feature linked anno change fine.
What am I missing?

SimonWillis · Answer

ESRI told me this is an arcgis 9.2 post sp3 known bug (NIM010898) and was fixed in 9.3. Too bad for me!