Cannot write properly to the xmldb

[Anoop <an...@myrealbox.com>]

Hi. I have a strange problem. When I try to write to a document as a
certain user, I get an error saying 

<Fault 10372: "org.apache.xmlrpc.XmlRpcException: Invalid page type '0' in findValue">

First off, am I writing to the correct list? 

Second. This seems to happen only when certain users are trying to write
to the document. I thought there might be a problem with which users
write, but all the users are mapped onto a single user (called sam)
before any operation takes place.

Any idea why this error might occur?

Thanks for any info.
Anoop