It is critical that any computer you use for email has current anti-virus subscription. Ideally all of your computers should run anti-virus software.

Anti-virus subscription typically costs $20 to $30 per year. It will scan for and remove viruses, which is malicious software that runs without your consent.

Vendors for anti-virus software include:

• McAfee: http://www.mcafee.com
• Norton: http://www.norton.com
• Trend micro: http://www.trendmicro.com/en/home/us/personal.htm