Kile,
>Almost everyone of the computers has lost an hour at one time or another. Some have lost an hour more than once in a day. As I said before, it is completely random.
Never seen that one, with exactly an hour being lost. Have seen date and time both get out of sync randomly with some cheap PC's, and decided to just put the NET TIME command into the login script to reset the date/time to the server on startup.
You could call that command from a batch file (duck -- or perhaps WSH could do the same thing) several times a day if necessary to insure that things stay somewhat in sync.