PROBLEM
This problem is addressed in ArcGIS 8.1 Service Pack 1. See Related Information section to download this pack.In ArcMap, when drawing a TIN layer that uses default symbology, if you press Esc to halt the drawing, you'll find the triangles stop but control is not returned to you for some time. This occurs for TINs that have no breaklines.
This is a known issue.
Article ID:000003947
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