List1.RowSource=List1.RowSource had no change.
I had the following code in the activate of each page to highlight the active page:
THIS.Parent.Setall("Forecolor", 0, "Page")
THIS.Forecolor = 16711680
THIS.Parent.Setall("Fontbold", .F., "Page")
THIS.Fontbold = .T.
Once I removed it, the list...