Has anybody else had problems with Zone Alarm? This evening all of a sudden my PC would not boot up and kept reverting straight to a blue screen telling me that XP couldn't start due to a serious error in connection with a file called vsdatant.sys, so I managed to boot into safe mode and found the file as one linked to Zone Alarm. Have uninstalled Zone Alarm completely and everything now seems back to normal. However I am now relying on XP firewall for protection and have heard that this aint the best protection. Anyone any recommendations .....?