Run OS 10.6 on Mac Pro. Have xifinity I net. Downloaded free Mac antivirus (for 10.6) from Comcast while signed in. Never asked for account name or anything else. File that came down was Norton_Internet_Security_4_Mac_EN.dmg. I did this yesterday but this file was marked with a "date modified" of March 29, 2010.
I am being asked to subscribe or enter a key. I can run the programs but no updating. Comcast phone and chat no help. Transferred from chat key and phone line to nowhere.