Hi, Success! Thank you very much all of you for your help.
Henning, your comment about having two copies installed got me thinking. I know I didn't have two scanimage programs but I decided to read more about 'make' to check I was doing things right. I read somewhere that doing 'sudo make install' over an existing install doesn't replace the files. Since the very first time I installed I didn't have libusb-dev installed, that was probably the problem. Typing 'find /usr /etc -name dll.conf -print' also confused me because I had two configuration directories for the single program install. Reading the output of configure more carefully made me notice the warning about the settings dir defaulting to /usr/etc instead of /etc. So, I uninstalled everything sane from the computer. Downloaded a fresh copy of nightly cvs goodness then used: ./configure --prefix=/usr --sysconfdir=/etc make sudo make install And it worked! Thanks again, I look forward to the 1.0.17 release. Chris