g25 woes

G25 used to work perfectly, but in trying to get a Logitech gamepad to work
for the youngling's foorball game I stupidly installed updated drivers for
that device.
Err.. it was a Logitech, and my G25 now does not initialise on power on. The
found new hardware wizard gives a "problem installing this device" etc.
I remember all this happening when I first got the G25, and was so foolish
as to update the driver to the latest 508. That killed it then in just the
same way. I remember that I only recovered by using a recent Acronis image
backup.

I've just tried that and it didn't work - neither did uninstalling all
Logitech software from add/remove and re-installing the driver that used to
work - v5.0.

Surely it is just a registry entry somewhere - surely somewhere here knows
the problem - and solution??

Many thanks,
Lol