Error locating derived schema in HP-UX

I have schema A.xsd extends schema B.xsd using <xsd:include
schemaLocation="/dtd/A.xsd"/>. However "/dtd/A.xsd" is not getting
recognized in HP-UX. I know this might not be a problem with schema but
if anybody has had such problem, I would appreciate to help me.


regards,
-Ranjan