I have painful experience with your problem. The most common problem causing 
such an error is that you maight use more then once xsl:variable into your 
stylesheet when processing XML file.

But this is not an installation problem.

-- 
Dimitar Peikov
Programmer Analyst
Globalization Group
"We Build e-Business"  

RILA Solutions  
27 Building, Acad.G.Bonchev Str.  
1113 Sofia, Bulgaria  

phone: (+359 2) 9797320 
phone: (+359 2) 9797300 
fax:   (+359 2) 9733355  
http://www.rila.com 



 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list