Hey there;

One of the nicer little tricks in Knoppix is "Run as a different user (GKsu)" You can find it under the K-menu > System > Run as a different user (GKsu).

When it starts, you should type in kedit as the program to run, and make sure it is running as root (you'll see... pretty self-explanatory). From there, open the XXXX.conf file you're editing in the SANE directory and when you're done editing, just save it. Because this program is running as root, you will have the required root permissions.

I find GKsu so useful, I have it's icon in my kicker.

Good luck!

Civ