Hello I am new to the forum. Every once in a great while, as my wife or I are surfing online, we see what looks like a black DOS window pop up and quickly go away. It pops on and off too fast to have a look more closely at what it says, if anything. I have run several spyware scans and virus scans and also had my logs checked. Except for a few little adware things here and there, nothing too major. Is this anything to worry about or just a background program executing? I've googled this issue and some people have it happen every 5 minutes. It only happens to me maybe once a month, but is freaky. Am I being paranoid or is it normal sometimes? The most recent time was just after I had reinstalled Zone Alarm.