I suddenly received the following error when using our web site to access SQL Server 2000 data:

 

Connectivity error: [Microsoft][ODBC SQL Server Driver][SQL Server] Login failed for user '(null)'.  Reason: Not associated with a trusted SQL Server Connection.

 

I have made no changes to any of the programming for this web site in months.

Our network administrator says the only thing he has changed in the last 24 hours is he upgraded the MDAC 2.5 on the web server to MDAC 2.7.

 

HELP!