I've read a lot of these replies, but I still have a question. I have a PowerMac G3. It came with Virex, but when it expired, I did not renew it. At this point, about 3 years later, I wonder if I should put some antivirus protection on it. I keep reading articles that as Apple computers are becoming more popular, there is more chance of getting a virus. I know on most of these posts, everyone said that you didn't need anything; I was wondering since my Mac is older, does that make a difference? I'll appreciate any advice that you can give me. I have over 2,000 pictures on my Mac that I don't know how to back up, so I'll be devastated if I lose my pictures! It will do CDs and DVD's, but I just don't know how to use this feature. As you can see, I need all the advice that I can get! I am older, a retired teacher who learned on a Mac; I also bought a Sony laptop, but PC's just confuse me. Thank you.