4 times today, my computer speaker has let out with a sound like a European police car siren. Also about the same time Zone Alarm said it blocked someone trying to access my computer. It shows that it intercepted a total of 4 attempted intrusions. (Win98 with Broadband connection) I've been using Zone Alarm for about a year now & I've never heard any kind of siren sound before. (I'm using the free version) I've looked through all the settings & I can't find anything about an audible alarm. Does anyone know if this sound is from Zone Alarm, or do I have a different issue? Thanks