Thank you for your help jefro, but that was the guide I was unsuccessfully using. My little Asus did not like it and would not let me past step 4. However I have an another problem at the moment in that the machine has become unbootable, or more accurately unswitchonable, I think something has become detached inside so I shall have to fix the physical problem before continuing with my saga. I will let you know of any progress. Thanks again.
Oll an gwella,