You quite obviously missed my point entirely.  I completely understand the need for continuous vigilance, upgrades and updates.  It just would be nice if the IT department didn't break something else in the process and the system still worked after they finished doing them.

I speak not in a vacuum but from first hand user experience. From following the instructions of the IT department in the firm where I worked warning everyone to save all work, exit the system and turn off computer at the end of the day so that upgrades could be installed, only to return the next morning to find that some function no longer worked correctly; to Shaw Communications "upgrading" its Webmail and breaking some functionality or other, or arbitrarily changing user settings.

Like Bootsy said "If it ain't broke, don't break it".