Thanks for your suggestion, unfortunately there are no plans to add hash change detection to the file change monitor as it is too CPU intensive, especially if a user has a large number of aliases, popups and scripts loaded. Checking the file modification time, which is what most applications do, really should be enough. If another application is occasionally modifying the time on your files (which seems a little odd and probably should not be happening), it sounds like the file monitor feature has worked correctly.
