Open a command prompt by doing this:

Start > run > cmd (press return)
In the new "Dos" window type in ipconfig /flushdns and press return. Please note that there is a space between ipconfig and the "/".

Thanks for your reply but I have done this and its just the same

Back in the command prompt window - type: ping ebookgeneration.co.uk and press return. Do you receive replies?

It says

pinging ebookgeneration.co.uk [60.90.118.124] with 32 bytes of data:

Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 60.90.118.124:
Packets: sent=4, recieved=0, lost=4 <100%loss>,

Ok, now open up your IE browser and go to Tools > Internet Options > connections tab > Lan Settings button. Do you have any proxy information in there?

do you mean where it says dial up and virtual private network setting?

This box is blank, if thats what you meant

....