I can't tell you how embarassed I am that I MAY have infected your computers with the KAK virus. It seems that my system was infected on 4/22 and it was then POSSIBLY sent out on every email I did after that until yesterday. If you have Norton anti-virus installed, no doubt it caught it and got rid of it before it had a chance to go anywhere else - we installed Norton yesterday to clean out the Love virus and that is how we found out about the other one. The symptoms are that it will crash you computer at 5pm on the 1st of every month. According to everything we have read this virus does no damage but it does send itself out on every email using MS Outlook AND using a signature on the email. My system crashes all the time for one reason or another so I didn't give the crash a second thought. What we are reading about it indicates that it can infect any computer thru an incoming email and that email does not need an attachment. It changes the registry file to cause the crash on the 1st of the month. It appears that it is spread only by those people using MS Outlook AND using a signature which I don't use but since it is spread by Outlook which I DO use I wanted to send this to everyone. Again, if I gave this to you I am so sorry. I know that Norton gets rid of it easily but there are probably other virus software programs that will clean it out as well. We are now running Norton on our network even though it slows everything down so hopefully this won't happen again. This just shows how important it is to have virus protection AND DO BACKUPS of your systems. If you do have the virus be sure to do another full backup after you clean off your system. Joan