Normally I might say you should use apt-pinning to stick QT at version 3.0, BUT you have KDE 3.2.2 with Knoppix 3.4 and it requires the QT version you have. Did you try to apt-get install the knights program? you could also try an apt-cache search knights to see if it is avail able for your build. You may have to get the sources from wherever you downloaded the program and compile it on your PC with an option to make to use the QT libs you have. Then again, you may be able to find a .deb repository that you can add to your "/etc/apt/sources.list" that you can apt-get it from. Lots to think about. I always go here http://www.debian.org/distrib/packages#search_packages to see if an official package is avail. You may have to compile the latest version from CVS, instructions here: http://knights.sourceforge.net/faq.php#faq7 regular compile instructions: http://knights.sourceforge.net/docs/installation-compilation.html Brian Kelsay >>> "Richard A. Franklin" <> 05/20/04 01:23PM >>> Problem installing a .tar.gz download in Knoppix. (BTW, thanks to all who helped during and after the install to the HD this last Tuesday at Foss). Trying to install Knights, a KDE chess interface. Fair program in SUSE ... good graphics and plays well with the Phalynx and Crafty chess engines. Phalynx and Crafty work with Xboard, but it Xboard is primitive. After unziping the file and changing directories "./configure" yeilds this message: checking for Qt... configure: error: Qt (>= Qt 3.0) (headers and libraries) not found. Please check your installation! tried apt-get install libqt3-mt-dev (that advice posted at debian.org) only to find that libqt3-mt-dev is already the newest version ... so, obviously not the solution ... what specifically needs to be installed and/or modified? thx, Rick