I'm having a problem with Zone Alarm Pro's True Vector engine shutting down. I never know when it's going to happen and can't pin it down to any certain event. This happens six or eight times a day. I've check ZAP's support and forums and haven't found an answer that helps my problem. I've uninstalled/reinstalled several times and it didn't help. I've got the latest version available. I've run all the usual spyware/malware programs and also Hijack This doesn't show anything out of order, at least as far as I can see. Anybody got any ideas?