Imagine sitting down at your computer, your family hanging over your shoulders, anticipation building as they wait to see you open your digital scrapbook of family photographs, print the detailed 23-page pedigree chart, and show just exactly how you are related to Queen Elizabeth II...only to have your computer grind to a halt and display a message that you have been the victim of a computer virus. Imagine opening your genealogy program to find your data has been corrupted. Imagine going to print a digitized version of the family bible entry you had to bribe a distant family member to take...only to find it has mysteriously disappeared. Imagine turning your computer on and finding your entire hard drive has been formatted, wiping out everything. Welcome to the world of computer viruses. True or False: You can catch a computer virus from a toilet seat. You can catch a computer virus from an e-mail message. A worm is a self contained program that can spread itself across a network. You can catch a computer virus from software you download. You can't catch a computer virus from commercial software.