In message , T writes:
On 3/1/19 11:29 AM, J. P. Gilliver (John) wrote:
In message , T writes:
On 2/27/19 4:23 PM, J. P. Gilliver (John) wrote:
Yes: when this problem manifests itself, I've found plugging in a
USB keyboard makes no difference - or even using the on-screen
keyboard! What's more, the problem/behaviour seems to have come
across from my Windows*XP*machine!!

Was the old keyboard unplugged when you tested?

Both machines were/are laptops! (Well, the XP was a netbook.)
[]

Try with a Live USB/CD/DVD. That will isolate software from hardware

https://spins.fedoraproject.org/xfce/

It can be cut with dd to a flash drive

I'm pretty sure it's not hardware - I can't think how _any_ hardware
fault would still manifest itself when I try to use the on-screen
"keyboard" (that you operate with the mouse).

Trying a Linux bootable wouldn't I don't think work - my problem only, I
think, manifests itself when I've been using the combination of Windows
softwares I normally use, for a while. And I think it's something I do
that triggers it - _something_ I think related to use of the Ctrl key,
but I'm not completely sure of that, and certainly don't know what. And
I don't know what makes it clear itself either, but again I think it's
an action or combination of actions I take.
--
J. P. Gilliver. UMRA: 1960/1985 MB++G()AL-IS-Ch++(p)Ar@T+H+Sh0!:`)DNAf

Science fiction is escape into reality - Arthur C Clarke