I have a strange problem with one of my clients VFP 3.0 program. Recently, I made some minor program adjustments for them and now strange things are happening. Just couple of strange behaviors include:
1. Save new information entered on a form, navigate around the form and data looks like it saved OK. Switch to another, unrelated form, go back, and some of the data is gone! The rec is still there but some of the field data disappeared.
2. Entered and saved a new rec with 5 child recs. Navigate around, looks good. Close the form, reopen and somehow now there's only 2 child recs.

I have try to duplicate this behavior in my computer with same version of the program and can't get it to do it. It works fine. I suspected maybe a virus problem but they said all virus check found nothing. Next up will be database/table/index corruption but what else can it be?

TIA
John.