I now have my computer back and it is working although not exactly fixed. The shop had it for over two weeks and tried all sorts of different parts, they said, but to no avail, they couldn’t find the problem with the screen, which is completely black. After I had been in and had a real kick off about needing my computer back they called ten minutes after I got home again to tell me that they had managaed to get it working with a secondary screen and if I was happy with that solution then I could come back and get it straight away and that could have been done weeks ago. To say that I was mightily brassed off is an understatement. Now if I could just get my broadband to operate at a normal speed instead of slower than dial-up then things would be peachy!
Roll on the return of the tech wizard from university to put us back in order, hopefully grasping a 2:1 Masters degree in engineering.