Hourly errors in error log

[Denis in Brisbane]

I have a site where I had problems during installation migrating an old site
to new and created and deleted a number of WSS sites along the way.

Now, every hour I get the following set of 4 errors relating to WSS sites
that no longer exist.

What happens every hour to trigger these and what can I clean up to stop
that action being initiated?

Denis

***********************************************************
Event Type: Error
Event Source: Windows SharePoint Services 2.0
Event Category: None
Event ID: 1000
Date: 22/11/2005
Time: 12:50:19 PM
User: N/A
Computer: CHCH-AP02L
Description:
#50070: Unable to connect to the database STS_chch-ap02l_1562051104 on
chch-ap03l. Check the database connection information and make sure that the
database server is running.

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

***********************************************************
Event Type: Error
Event Source: Windows SharePoint Services 2.0
Event Category: None
Event ID: 1000
Date: 22/11/2005
Time: 1:00:12 PM
User: N/A
Computer: CHCH-AP02L
Description:
#50070: Unable to connect to the database STS_chch-ap02l_90491273 on
chch-ap03l. Check the database connection information and make sure that the
database server is running.

For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.
***********************************************************
Event Type: Error
Event Source: Windows SharePoint Services 2.0
Event Category: None
Event ID: 1000
Date: 22/11/2005
Time: 1:10:07 PM
User: N/A
Computer: CHCH-AP02L
Description:
#50070: Unable to connect to the database STS_chch-ap02l_1562051103 on
chch-ap03l. Check the database connection information and make sure that the
database server is running.

For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.
***********************************************************
Event Type: Error
Event Source: Windows SharePoint Services 2.0
Event Category: None
Event ID: 1000
Date: 22/11/2005
Time: 1:10:07 PM
User: N/A
Computer: CHCH-AP02L
Description:
#50070: Unable to connect to the database WSSFirst on chch-ap03l. Check the
database connection information and make sure that the database server is
running.

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

***********************************************************