Blue Screen on log in after installing ZA fix - Free version. Same has happened to me whenever I ve tried to update the recent free ZA or install ZA Anti-Virus on the XP SP3 totally current except for ZA. Error message: BAD_POOL_HEADER STOP:0X00000019 (0X00000020, 0XFF93E698, 0XFF93EF68, 0X0B1A0028). I ve used ZA many years, both free and priced versions. On the atempts to install the newer versions I have first removed all known other security programs from my XP system, but to no avail. Getting kinda tired of this, as I can t figure the problem. Thanks for whatever suggestions. No similar problems with my Vista

Operating System:Windows XP Pro
Software Version:7.0
Product Name:ZoneAlarm (Free)