Guys,
I reckon that that device that I was talking about above, that had burned out, had something to do with the fact that the USB add-on doesn't work now.
I think that the only way I am going to get around this one is to fit a new motherboard, as I don't know of anyone around here that repairs computer motherboards, if it can in fact be done.
I may just have to bite the bullet and spend some cash. [Linked Image]