To be honest Drapes, I'm not sure that this .INF file caption is much of a problem. I've now done what I was trying to do when the caption first appeared (load printer software). I was mainly curious as to what it mean't and wondered if it could be related to the power switch problem that I have. My confuser is a few years old now, so it might be time to bury it at he bottom of the garden, and go out shopping for a new one.
For the benefit of any environmentalists reading this, I'd better point out that I would never really bury my computer. I know that there are charities that gladly accept donations of computers and computer equipment, and that is probably what I'd do.