Every night for the past 4 nights at exactly 11pm GMT my PC will turn up a DNS error when connecting to my internet. The status shows a full signal strength bug a yellow triangle on it (you know the symbol). The next morning it is fine and connects fine, until 11pm GMT. The web works fine on my Laptop and iPod at this time and it only seems to be my PC. I have done a full virus scan on my PC and there are 0 threats.