Quote Originally Posted by bsa2002
try to reinstall knoppix if it don't work install windows and boot from the cd
Very tempting to install Windows and forget the Linux altogether. But the point of this exercise was to give Linux a fair trial. If I reinstall, I lose all the other settings it's taken me ages to sort out. I've meanwhile narrowed this one down to "point and click" doesn't work, but if I use the directory tree, I can point at the one I want, click Copy, then paste it into the "Location" window, and it works.

I've removed all the (non-working) original file folder icons on the desktop, and created new ones that call konqueror with the appropriate file:/ reference, and they at least get me to the relevant hard drive. So that's as far as Linux goes.