I know you can, its not like the software it locked to a perticular computer. Lets say I have the 2003 version and I use it on 4 computers.2K3 MSP said:That's cool...I'm happy with the new computerOne thing maybe you can answer...I bought Norton anti-virus for my new computer. Since it is registered to me, can I use it on my second computer too? Or would I have to purchase a second copy of the program?