"Failed to change password."

[Espen Solberg]

When I try to change password for a user on a virtual domain using
qmailadmin/qmail/vpopmail, qmailadmin tells me: "Failed to change
password.". I see that sqwebmail-pass for the specified user changes but
vpasswd for the virtual domain is not reflecting any change. Anyone
knows why and how to fix it?

I'm using: 
qmail-1.03
qmailadmin-0.32
vpopmail-4.8.7

All domains on the server (3, all virtual domains) have the same
problem.
Is this an error in qmailadmin or somewhere else?
-- 
Espen