On Friday March 26, 1999 an e-mail virus named "Melissa" slipped into systems via e-mail and forcing computers to fire off dozens of infected messages to friends and colleagues. Once opened, the virus immediately reads the user's e-mail address book and sends an infected message to the first 50 entries. Although the virus apparently causes no permanent damage to a computer, its clogging affects were far-reaching. All new Microsoft Word documents created on an infected computer will contain the virus, too. Our own computer lab has posted a ....