Detecting self-overlapping polygons

[MikeMazerolle]

Is there anyway to detect a self-overlapping poygon (i.e. single polygon of ID x overlaps with single polygon of ID x). This is sometimes a problem when importing features from a GPS unit, but these overlaps are not detected wit the topology tools.

Thanks!

[JonathanQuinn]

The Must Not Overlap rule for topology doesn't suit your needs?  It should detect any features that overlap within the same layer.