as far as norton goes you should open administrative tools/services and kill some useless norton services.... you dont need the email scanner if you use web based (hotmail, yhoomail, gmail)...

i still say nuking norton is the best thing todo... i use avira antivir....yes it does give me a pop up once a day everytime it updates but for me thats no biggie, its not a hostile popup thats a ..... to close and its always the same one.... you get so many popups these days that putting up with those is no biggie...especially since they provided me with good free antivirus...