I get the occasional warning from SWC itself, mainly because theres some links with malware from the banner exchange, but i've never come across anything from the CP top sites, and i use AVG Free. Norton i hate. So maybe just change your antivirus program if you're not paying for it and get AVG for free.
Not even Death's embrace shall save you from me.
There are too many good guys in this galaxy, which is why you have me.