Hi there - excuse me if this has been asked before, but here goes. I am running Outlook Express 6. I have a router, Norton Antivirus and PC Doctor - yes I just learned about PC Doctor on your site, but didn't know before. Periodically I run a free virus scan with Trend Micro, also. All my programs are regularly updated, and I don't open suspicious e-mails. I'm not real computer savvy, but thought that would be enough. Anyhow, every one of these programs says my computer is clean. However, it appears I am sending e-mails out to people I don't know (getting the undeliverable ones back), and they are advertising girly stuff and pharmaceuticals. Something has crawled into my computer and I can't find it. Any ideas, anyone? Thanks................