Getting event ID 7200 , 9188, 8026 on my exchange server

I am running two exchange servers win 2003. We will soon retire the first one but until then we need to keep it up and running. I continue to get this error message.

Application log generated Error Event 7200 on kmw-exch01.kmw.exchange
For more information see http://www.eventid.net/display.asp?eventid=7200&source=MSExchangeIS Mailbox Store

Log: Application
Type: Error
Event: 7200
Agent Time: 3:01:00 pm 24-Feb-09
Event Time: 11:01:00 pm 24-Feb-09 UTC
Source: MSExchangeIS Mailbox Store
Category: General
Username: N/A
Computer: KMW-EXCH01
Description: Background thread FDoUpdateCatalog halted on database "Staff\Staff" due to error code 0x80004005.

Event Type:      Error
Event Source:      MSExchangeSA
Event Category:      General
Event ID:      9188
Date:            2/24/2009
Time:            3:15:06 PM
User:            N/A
Computer:      KMW-EXCH02
Description:
Microsoft Exchange System Attendant failed to read the membership of group 'cn=Exchange Domain Servers,cn=Users,dc=kmw,dc=local'. Error code '800705b4'.

Please check whether the local computer is a member of the group. If it is not, stop all the Microsoft Exchange services, add the local computer into the group manually and restart all the services.

For more information, click http://www.microsoft.com/contentredirect.asp.

Event Type:      Error
Event Source:      MSExchangeAL
Event Category:      Service Control
Event ID:      8260
Date:            2/24/2009
Time:            3:00:35 PM
User:            N/A
Computer:      KMW-EXCH02
Description:
Could not open LDAP session to directory 'KMW-SRV.kmw.local' using local service credentials. Cannot access Address List configuration information.  Make sure the server 'KMW-SRV.kmw.local' is running.    

For more information, click http://www.microsoft.com/contentredirect.asp.

Event Type:      Error
Event Source:      MSExchangeAL
Event Category:      LDAP Operations
Event ID:      8026
Date:            2/24/2009
Time:            3:00:35 PM
User:            N/A
Computer:      KMW-EXCH02
Description:
LDAP Bind was unsuccessful on directory KMW-SRV.kmw.local for distinguished name ''. Directory returned error:[0x55] Timeout.    

For more information, click http://www.microsoft.com/contentredirect.asp.