>The result is no rows shown in the grid. (Not the empty grid you'd get without Safe Select). If I click onto _SCREEN and then back on the form, the grid fills in.
>
>Even weirder, navigation in the form works fine until I save and this starts. That is, if I open the form in View mode, and move among records, the grid updates correctly. But once I've saved a record, when I navigate, the grid doesn't update unless I click off the form and back onto it.
>
>I've actually added MOUSE commands at the end of the save to make the refresh happen, but that doesn't solve the navigation problem (and for reasons too complicated to go into, I can't easily add those MOUSE commands to, say, the form Refresh).
>
>Any ideas what might cause this and, more importantly, how to fix it?

No clue, that old phantom bugged me too at odd times. Never learned the cause, nor a sure fix. Most of the times, some forced navigation in the grid was necessary before it would properly refresh. Something like go to correct record, followed by a SKIP 0 (yes, zero). This usually forces some reaction from fox, moving the record, even for zero records, often triggers proper reaction. Used this more in the old days, before internal SQL, when we used relations a lot, so this would force repointing the related-into tables to show the correct record. Why and when it would, or wouldn't, work on grids remains a mystery to me.