As an alternative to Norton I would recommend AVG Antivirus from
www.grisoft.com
I've been using it since my Norton installation got screwed up and it's very efficient and also a lot easier on the system resources than Norton. Actually I'm not a fan of Norton at all anymore. Something got screwed up in my installation so I tried to do the standard uninstall/reinstall and that didn't work. The uninstaller ran but it didn't actually uninstall anything and reinstalling didn't fix the problem. So I manually deleted the files and deleted about 500 registry keys by hand and reinstalled again and it still wouldn't work and the uninstall was still f*ed up. So once again I deleted everything and removed hundreds of registry keys. And installed AVG. No problems since then but there are still bugs in the system from the Norton Systemworks installation. If I double-click the recycle bin it tries to open the Norton un-delete thing. I did an upgrade/reinstall of XP and it's still there. The only way to get rid of it completely is to do a full format of your HD.
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