Is there a way to requery a cursor other than the InitialSelectedAlias?

For example, a combobox is tied (RowSourceType is 6-Fields) to the last cursor in a BizObj/DataEnvironment. Issuing a requery in the PostRequeryHook of the BizObj only requeries the InitialSelectedAlias and does not load the combobox. Is there a way to requery the last cursor? Or do I need to create a new dataenvironment?

Thanks for any help or insight.

Bob