EXECUTE permission was denied on 'proc_putPendingDistributionList' - erics

I'm getting this error when a site owner creates a new site.  We're on MOSS
Enterprise + SP1 + Infrastructure Update.

Looked in the db and no explicit permissions are set up on that stored
procedure.
But the same goes for many of the other sibling procedures.

Thanks for your help.
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Event Type:	Error
Event Source:	Windows SharePoint Services 3
Event Category:	Database
Event ID:	5214
Date:		10/16/2008
Time:		8:43:58 AM
User:		N/A
Computer:	SHAREPOINTSERVER
Description:
Insufficient SQL database permissions for user '' in database
'SharePoint_Config' on SQL Server instance 'SharePointDataBase'. Additional
error information from SQL Server is included below.

The EXECUTE permission was denied on the object
'proc_putPendingDistributionList', database 'SharePoint_Config', schema 'dbo'.

For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.