Rebooting stops resolving for a while

[Jonathan de Boyne Pollard]

UP> He is using an example IP address with 55.55.55.55.  

No, he isn't.  That's a real IP address, _not_ an example.

<URL:http://homepages.tesco.net./~J.deBoynePollard/FGA/dont-obscure-your-dns-data.html>

UP> As for his problem?  I don't know.

That's because he didn't provide you with the information that
you need in order to diagnose it - precisely the error that Bill
was subtly pointing out.