[mapserver-users] shapefile error only when zoomed out

[Wendell Turner]

Why would a shapefile only display when the map display is
zoomed in?

When zoomed in, the image displays correctly.  When zoomed
out, it gets this:
  msDrawMap(): Image handling error. Failed to draw
  layer named 'tfr'.; msDrawShape() General error
  message.  Only polygon shapes can be drawn using
  a POLYGON layer definition.

shpdump shows this:
  Shapefile Type: Polygon   # of Shapes: 2
  ...
  Shape:1 (Polygon)  nVertices=0, nParts=0
    Bounds:(         nan,         nan, 0, 0)
        to (         nan,         nan, 0, 0)
Is that a problem?  If so, is there a way of removing that
shape (possibly using gdal)?

Thanks,
Wendell