[xoxmodav]

Насчёт ошибки 55 - посмотри эти статьи Microsoft:
You may receive an error message when you revise and then save a file that has a DBCS file name in Windows Server 2003 or in Windows 2000
Cached FRS Data on an NTFS Volume Is Lost Under Stress
Cannot Delete or Repair Corrupted File on NTFS Volume
Event ID 57, event ID 55, and event ID 50 may be logged when you use Windows Cluster on Windows Server 2003
и статью:
http://www.microsoft.com/technet/sup...Ntfs&LCID=1033

Ошибка 40 - обязательно почитай данную статью:
http://www.microsoft.com/technet/sup...ntfs&LCID=1033