Hello, I am having problems getting freenx running in CentOS 4.5 i386_64. I know this is not a new problem, however, I havn't found a solution in all the postings I found on the web. I did exactly what is supposed to work and described in detail at http://wiki.centos.org/HowTos/FreeNX After doing that I can connect to the server with nxcleint without problem but I get only a black screen. In the files .nx/S.../session and errors I see the warning Warning: Unrecognized session type 'unix-gnome'. Assuming agent session. The same happens with KDE. With the command nxloadconfig --check I get the output Warning: Could not find nxdesktop in /usr/bin. RDP sessions won't work. Warning: Could not find nxviewer in /usr/bin. VNC sessions won't work. Warning: Invalid value "APPLICATION_LIBRARY_PRELOAD=/usr/lib/ libX11.so.6.2:/usr/lib/libXext.so.6.4:/usr/lib/libXcomp.so.2:/usr/lib/ libXcompext.so:/usr/lib/libXrender.so.1.2". /usr/lib/libX11.so.6.2 could not be found. Users will not be able to run a single application in non-rootless mode. Warning: Invalid value "COMMAND_FOOMATIC=/usr/lib/cups/driver/ foomatic-ppdfile" Users will not be able to use foomatic. Warning: "/usr/lib/cups/backend/nxipp" is not executable. Users will not be able to enable printing. Warning: "/usr/lib/cups/backend/smb" is not executable. Users will not be able to enable printing. Warning: Invalid value "COMMAND_START_CDE=cdwm" Users will not be able to request a CDE session. Warning: Invalid cupsd version of "/usr/sbin/cupsd". Need version 1.2. Users will not be able to enable printing. Error: Could not find 1.5.0 or 2.[01].0 or 3.0.0 version string in nxagent. NX 1.5.0 or 2.[01].0 or 3.0.0 backend is needed for this version of FreeNX. Errors occured during config check. Please correct the configuration file. The libraries are definitely not where nx looks for them - they are located at /usr/lib64/NX/lib (and symlinks under (usr/lib/NX/lib). What is going wrong here? I also tried to use nxconfig with --setup- nomachine-key with the same results, except that I did not need to import the key in the nxclient anymore. Does anyone has an idea to solve the problem? Many thanks for help Michael