I HARD-CODED, FOR NOW, THE PATH DIRECTLY TO THE NECESSARY TABLES in the Data Environment's BeforeOpenTables procedure. This seems to have worked okay.

*!* This.Cursor2.Database = "Y:\WACORP\NC"
*!* This.Cursor4.Database = "Y:\WACORP\NC"
IF NOT USED("POHeader")
USE Y:\WACORP\NC\POHEADER IN 0 SHARED
ENDIF
IF NOT USED("PODETAIL")
USE Y:\WACORP\NC\PODETAIL IN 0 SHARED
ENDIF