The system has several problems, which hopefully will be ironed out 
within a couple of releases. 

* Memory leaks:  dynamically-allocated attribute values are not freed
		 a fix is under way, but not ready for this initial 
		 release.

* STk 3.0 save postscript command doesn't work unless prolog.ps is moved
  to $STK_LIBRARY

* (product g1 g2) works, but the product main-menu option doesn't produce
  nice output (you must select a layout after the product graph is produced)

* segfault: (define g2 (graph '(1 2) '((1 2) (2 3))))

* parser:  keywords "GRAPH UBINGRAPH" (etc.) should not be mandatory, but
         they are currently needed during parsing of graphs with subgraphs.

* The manual is full of typos and unresolved references.  The program
  generating the index entries has to be fixed (... .tbl.tex).

* The manual contains some examples (particular regarding vectors)
  in which many errors occur.  This is because the methods used in 
  those examples were sacrificed to speed up the slow loading time
  of the system.
