It was recommended that to keep a grid from crashing when I delete the table's records and refill them with new ones... I should:
- use COPY STRUCTURE to create a temporary file with proper structure
- change the grids RECORDSOURCE to the new structure
- change the grids columns CONTROLSOURCE to the new structure
- change the delete the old source file and recreate the data
- change the grids RECORDSOURCE to the recreated file
- change the grids columns CONTROLSOURCE to the new structure

How do you change the CONTROLSOURCE... I tried thisform.grid1.columns(1).controlsource= and I get an error of unknown item.