Honestly, with the business practices that Symantec and McAfee have shown, it's no wonder viruses and trojans infect so many people: getting the software updated can be even more of a pain in the butt than getting infected Ed Foster wrote a pirce about this, and has a poll for which vendor do you trust nowadays. Frankly, I'm glad I don't have to worry about such things for my home machines. I can't count the number of hours people at work have lost due to viruses and updates to the virus protection programs.