I ran Norton Internet Security for a couple of years on 4 of my family's computers. All became virus infested and had to be formatted. 3 of our computers now run PC-Cillin 2006 Internet Security. However, Trend has let one additional malware strike a computer. It was detected with the online scanners at F-Secure and at BitDefender. I have tried F-Secure Internet Security 2006 and was very impressed, except (1) if scan all files was selected my computer -a 3Ghz 2GB SDRAM- became virtually unresponsive, and (2) backweb began giving error messages on 2 different computers. I have a trial of BitDefender Internet Security 9 on one computer and have been very impressed until I learned that it does not scan incoming mail from my IMAP account. BitDefender tells me that IMAP support will be implemented in the next version. Is my incoming IMAP mail safe enough to stay with BitDefender? Should I try something else? Is there a way to stabilize F-Secure?