DOCBOOK-APPS: error docbook.xsl

[Ming Zha <mzha@interaktiv.tu-darmstadt.de>]

Hallo,
I am trying to convert a docbook document to a html document an have got 
the following error message:
"Fatal: file: 
Tomcat-Home/cocoon/mount/docbook/stylesheets/docbook-xsl/html/../common/common.xsl; 
line 1576; Column 35; 4 >=4
at 
org.apache.xalan.transformer.TransformerImpl.run(TransformerImpl.java:3231)
at java.lang.Thread.run(Thread.java:479)"
I use windows 2000, JDK 1.3.1_07, Tomcat 4.0.6 , cocoon2.0.4 and 
docbook-xsl-1.60.1.
Even so became I a output html file with incomplete transformation.
I have also tried with Tomcat 4.1.18. I have become the same error 
message and no output html file.
Have you any idea to resolve this problem?

Ming