Over 50% of the visitors to this site are not running Linux; they are using Internet Explorer. Yesterday Microsoft released patches to fix twenty bugs in the Windows operating system. Read more in this article in New Scientist.

Here are the links to the Windows patches:

MS04-011

MS04-012

MS04-013

MS04-014

Here is the link to the download page for Knoppix, a single CD version of Linux. By downloading this software, you can run your PC directly from the CD without disturbing the legacy operating system (such as Windows) which you already have installed. Then you can start learning about Linux, and how to take back control of your computer.

Note that Linux isn't perfect: here is a page on the latest security breaches for both 2.4 and 2.6 kernels. However, note that most of these flaws are limited to on-site attacks rather than email viruses.