AVG I ordered came from Amazon.com and I could see my PC constructed rightly. I got it. I had Ubuntu 7.04 but it was old. So I downloaded 10.10 and installed it. So good it was! Beautiful. I felt I didn't need windows any more. I also bought wireless mouse and keyboard with VGA. They were good but sometimes didn't run promptly. Further more, LAN didn't work so Internet wasn't used. I moved my machine and wired it with other LAN cable. It began to work. Good. I wanna study about Linux from now.