First, there are no Mac viruses. Second, anti-virus apps are not free.

Norton AntiVirus 12 for Mac® is Symantec’s top-selling security product for Macintosh computers, including protection against the latest online threats such as viruses, spyware, software vulnerability attacks and more. Meet the All-New Norton Security Deluxe – All the Features of Norton AntiVirus for Mac and More! To better protect you, we have substantially enhanced our security services: We took everything you loved about Norton AntiVirus for Mac, and added better protection.

Third, Norton is no longer supporting the Mac. Fourth, it's best not run any Norton apps on a Mac HD with OS X. It will 'mess' things up. Now to your problem.

What model Mac do you have? How much RAM do you have.

When you say it's 'slow', is it booting slow, is it slow when running all apps or just your browser? Do you think the 'churning' noise is coming from your HD, your CD/DVD drive, or your fan? What external devices other than your kbd, mouse & monitor do you have on your Mac?  Cheers, Tom. Tom, First, you are categorically incorrect.

I'd buy 'no known viruses in the wild that affect up-to-date Macs running OS X,' but there has been one in the wild - fixed by 10.4.6, and there are at least three more that haven't left Fred Cohen's (look him up) labs. Second clamXav is free as in speech and beer (although the guy who wrote it does take donations). Third, the OP is running 10. 3.9, but with Tiger, too. Fourth, that's an overly-broad claim. I do find Norton products to be resource hogs, and others have reported problems with Norton's system tools, but that's not what you said. Wolfie, it would really help to know just what diagnostics you have run.

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David, Stration is a Windows virus. Since it's spread via email, you may very well have accidentally forwarded it. If you didn't do it, somebody spoofing your email or IP address may have spread the worm. Since blacklists aren't always correct, you might want to contact the site that blocked you. In the meantime, it's possible that your mailbox may contain copies of the worm.

It would be a good idea to scan your email using antivirus software. I would recommend the free, which has the ability to scan email automatically.

(Read directions on the site or in the manual in the program's download to help you set up scans.) -Wayne. Apple Footer • This site contains user submitted content, comments and opinions and is for informational purposes only. Apple may provide or recommend responses as a possible solution based on the information provided; every potential issue may involve several factors not detailed in the conversations captured in an electronic forum and Apple can therefore provide no guarantee as to the efficacy of any proposed solutions on the community forums. Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site. All postings and use of the content on this site are subject to the.