BOAC . . . . .
Yes that's the "guy" I mentioned in the opening post, but have found a number of similar one's since, all with no answer/solution. ...You've hit the nail on the head in that there is definitely something 'a bit recent' about all this; confirmed by current dates on the above mentioned queries.
Coconutty . . . . .
Yes, my first thought was to search or try to 'Run' sw.exe, to no avail.
No, re. SideWinder, or hardware/software, apart from a 3G datacard a good few weeks back now.
I have a suspicion about Scrolling Windows only in that I keep coming across passing references to it, but haven't a clue where to start there, re. my own computer.