[vchkpw] deleting user from mysql backend

[Matt]

Hello all,

I'm getting a strange error when I try to delete a domain from the mysql 
backend.  I use command:

vdeldomain <domain>

and it returns with:

Warning: Failed while attempting to delete domain from auth backend

Everything seems to delete okay though, the entry from rcpthosts, 
virtualdomains, assign, and the directory in ~vpopmail/domains.

Any ideas?

Matt