[Samba] Error message after samba upgrade

[Jevos, Peter]

Hi

I had to upgrade samba because we upgrade DC windows to 2008.
My current samba version is 3.5.4-0.70.el5 .
I'm using RHE Server release 5.4

After the upgrade this message started to appear:
Feb 27 20:52:26 mailgate winbindd[316]: [2011/02/27 20:52:26.682422,  0] libsmb/cliconnect.c:1051(cli_session_setup_spnego)
Feb 27 20:52:26 mailgate winbindd[316]:   Kinit failed: Cannot contact any KDC for requested realm
Feb 27 21:24:37 mailgate winbindd[316]: [2011/02/27 21:24:37.243211,  0] libsmb/smb_signing.c:96(smb_signing_good)
Feb 27 21:24:37 mailgate winbindd[316]:   smb_signing_good: BAD SIG: seq 1
Feb 27 21:24:37 mailgate winbindd[316]: [2011/02/27 21:24:37.244111,  0] libsmb/clientgen.c:279(cli_receive_smb)
Feb 27 21:24:37 mailgate winbindd[316]:   SMB Signature verification failed on incoming packet!
Feb 27 21:24:37 mailgate winbindd[316]: [2011/02/27 21:24:37.259390,  0] libsmb/cliconnect.c:1051(cli_session_setup_spnego)
Feb 27 21:24:37 mailgate winbindd[316]:   Kinit failed: Cannot contact any KDC for requested realm
Feb 27 21:35:41 mailgate winbindd[316]: [2011/02/27 21:35:41.870499,  0] libsmb/smb_signing.c:96(smb_signing_good)
Feb 27 21:35:41 mailgate winbindd[316]:   smb_signing_good: BAD SIG: seq 1
Feb 27 21:35:41 mailgate winbindd[316]: [2011/02/27 21:35:41.871435,  0] libsmb/clientgen.c:279(cli_receive_smb)
Feb 27 21:35:41 mailgate winbindd[316]:   SMB Signature verification failed on incoming packet!
Feb 27 21:35:41 mailgate winbindd[316]: [2011/02/27 21:35:41.887275,  0] libsmb/cliconnect.c:1051(cli_session_setup_spnego)
Feb 27 21:35:41 mailgate winbindd[316]:   Kinit failed: Cannot contact any KDC for requested realm

Point is that samba doesn'at authenticate, then i need to restart it.
After a couple of days i need to restart it again

Do you have any ideas ?

Thanks

pet