Over the last couple of weeks, my Sygate firewall has been detecting "Denial of Service" Code Red attacks. Today, I had about 20 of these in a few minutes. I never used to get many security warnings at all so I'm now wondering what these are and who they are from. Should I use the backtrace to find out more, or is it best not to use this (as I think I saw someone advise not to do so once) and simply forget it and be happy that the firewall is doing what it is there for. It seems to have started to happen about the same time I installed Yahoo Messenger. Is this a possible factor or is this just my mind playing tricks. Any info would be very helpful.