My system is Windows 2003 Server + NTFS and in some directories it is storing the Last modification date incorrectly whereas the Creation Time is still fine. The offset is exactly one year in the past: the last modified date is older than the creation date!!!. Did you experience similar problems? What is the explanation and solution for recovering to a normal situation?
I just hope it is not an indication that our disks are getting old (in which case it would be rather unlikely that this phenomenon is visible on all files in a given directory...)