Error Event ID 27745 - salim

Since the last couple of days, i have been recieving an error in my
event log at around the same time every day. This is a multi server
farm. The error is as follows

Event Type:	Error
Event Source:	Windows SharePoint Services 3
Event Category:	General
Event ID:	                27745
Date:		8/22/2007
Time:		12:10:32 AM
User:		N/A
Computer:	xxxxxxx
Description:
The description for Event ID ( 27745 ) in Source ( Windows SharePoint
Services 3 ) cannot be found. The local computer may not have the
necessary registry information or message DLL files to display
messages from a remote computer. You may be able to use the /
AUXSOURCE= flag to retrieve this description; see Help and Support for
details. The following information is part of the event: #50071:
Unable to connect to the database WSS_Content on <our sql server>.
Check the database connection information and make sure that the
database server is running..

Has anyone had experience with this before ? The site seems to be
running ok, but the recurrence of the error every day is bothering
me.

Any help will be appreciated.

Thanks