DOCBOOK-APPS: Problems with docbook2txt

On my Debian system, I'm having problems with the docbook2txt program.

Running 'docbook2txt somedoc.sgml' gives me these errors:

jade:E: cannot find "SGML_STYLESHEET"; tried "SGML_STYLESHEET",
"/usr/local/share/sgml/SGML_STYLESHEET",
"/usr/local/lib/sgml/SGML_STYLESHEET", "/usr/share/sgml/SGML_STYLESHEET"
jade:E: specification document does not have the DSSSL architecture as a
base architecture


[SNIP - FULL DOCUMENT PRINTED TO STDOUT]
 
Can't Access
`file://localhost/home/mbp/work/prj/pisg/pisg/docs/pisg-doc.html'
Alert!: Unable to access document.

lynx: Can't access startfile 
rm: cannot remove `pisg-doc.html': No such file or directory


Anyone knows a workaround?

   - Morten.