OK, I know the answer to this one, but I found it interesting enough to post it here. Consider it a puzzle about computers.
My colleague set the time of a computer (running Windows 2003 Server), but time and again, it would go back to a wrong time. Now, what do you think could cause this behavior?
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)