One common error - which may, or may not, apply in your case - is to USE SomeTable, without issuing SELECT 0 first - such a command may close the view.
Try using the debugger, and set a breakpoint when
used("vOwner") = .F.HTH, Hilmar.
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)