Anyone who has been reading my column or listening to my radio talk show "Computer America" knows I have been preaching the back-up mantra for years. If I ever decide to have a bumper sticker on my car, it will read: "It's not IF your hard drive will fail, it's WHEN it will fail" - which would make for a really long bumper sticker or one with lettering so small as to encourage tailgating to read it.