Jinn

I think probably many of you have got tons of spamming emails everyday, and some of them contain virus. I got them too, but that's not the part that annoying me. The strange thing is, some of those virus emails came from someone I know. After I contact them, they all told me they never sent any email like that. And I also receive some 'returned emails' that supposely are sent by me. I swear I never sent any of them and most of the recipient email addresses are unknown to me. I have Norton Anti-Virus installed and the virus database is recently updated. And I can't find any virus on my machine.

Isn't that strange? Anyone has similar experience? Do you know what's going on and how to fix that? I don't want to get spammed, and I certainly don't want to spam others.

Thanks in advance.

Jinn