It's definately worth getting ' ZoneAlarm' firewall software. Get it from www.zonealarm.com . It's free. There's also a new e-mail virus doing the rounds , 23kb in size, various different formats, this is an incurable virus. The first one was marked as something to do with snow white and the seven dwarfs, Basically, it seems to have been renamed as several different things, the main feature is that they are all 23kb. Don't open it people, it will bite you.
Steve P