I'm not new to GIS, but just learning ArcGIS 10.
I have been led to believe that the standard labeling engine doesn't allow any overlap: http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#/Positioning_labels_with_the_Standard_Label_Engine/00s800000020000000/
however, I am seeing significant amounts of overlap between labels in just one layer. This is the image I get:
This is within a Data Frame with a fixed scale (1:2500) and no reference scale . I wondered whether that had anything to do with it, but playing around with either of these parameters doesn't seem to have any effect. Is there anything I'm missing in the label manager options - I have checked and double checked that the "Place Overlapping Labels" check box is off. When I increase the buffer size, I get fewer labels, but some of them still overlap.