sounds like you have a trojan or virus. I would first try and go to a site to get a virus cleaner. Your antivirus web page usually supplies one. Hut anyone can use the program free. Good luck. Once you have the virus out use system restore and then install ZoneAlarm.
I had been using Zone Alarm for several years then installled the "upgrade". It shut me down, and I couldn't get the older version back. Downloaded the SP2 and now when I get emails there are no images. What to do?