On 12/01/2021 16:27, Bert Coules wrote:
I'd be grateful for any suggestions as to why one key - and only one key
- on my PC keyboard should suddenly have stopped working.

The key in question is f11 which I'm trying to program with a Word
macro. Until yesterday it was working perfectly with a slightly
different version of the same macro.

The keyboard is an admittedly quite elderly (and expensive, when bought)
Cherry model which in every other respect is working fine.

I've tried opening the case and cleaning the keyboard's innards, both
with a brush and an air spray.Â* There's no visible damage either to the
underside of the board or (with the key cap removed) to the individual
switch.

Thanks.

IMHO decent keyboards are so cheap now that it is probably not worth
spending any more time on it. In "desktop" days I used to be very fussy
about keyboard action, it may be that having used a dozen or more
laptops in the past 20 years I have become more tolerant. I'm currently
using an HP keyboard that was £12 in Sainsburys (I bought it when I
needed to fire up a unix box, then it was in my spares box for a few
years until the Dell keyboard died).