We have to jump when a problem occurs. From experience in the field, they have been able to pinpoint most problems and can anticipate when the systems might be affected. It is this expertise that has made the job easier in Bosnia. When possible, Schroeder preaches computer common sense to soldiers, from the commanding general on down. Computers get dropped.
People spill drinks on keyboards.
People can't simply plug a computer in and expect it to work all the time without doing some preventative maintenance.