I have just installed Zone Alarm Pro, but when I tried the Browser test and Quick test at PC Flank (http://www.pcflank.com/about.htm) ZAP failed them. Apparently it leaks info to web sites of other sites you have visited. I contacted ZoneLab but they say nothing can be done to configure ZAP to prevent this security leak. I never had this problem with Norton Personal 2003 FW which always passed the test. Unfortunately I had other problems with Norton (and their disgracefully bad Technical support!) and so had to ditch it. But does anyone know of a good alternative firewall that will pass the PC Flank tests?