error help:Remote access not allowed for Windows NT user activated by SETUSER

Hi,

I just install SP3 for our SQL Server 2000 yesterday.After that, I have problem using xp_sendmail.
I have a stored procedure in Server A that getting result from Server B.
In Query Analyzer, I can successfully execute procedure A.(exec procedure_name)
However, if I put it in xp_sendmail command...(exec sp_sendmail email_address ,@.query='exec procedure_name'),
I got an error message saying 'ODBC error 7410 (42000) Remote access not allowed for Windows NT user activated by SETUSER.'

But before I upgrade, that xp_sendmail works fine for more than one month.

BTW,if in xp_sendmail, I only get result from local server, it works perfect fine.

How can I make it work?

Thanks in advance.you can put the result of the SP into a global temp table (or permanant one) and select from that in the xp_sendmail.

Don't have 2 sp3 systems here to see what's wrong it but praobably will tomorrow.
Does the profiler show anything interesting?