Hi devsk, As we discussed on IRC, I did a test of KDE4 under Ubuntu 14.10. Ubuntu 14.10 has libxfont 1.4.99.901-1ubuntu0.1, which is an RC for libxfont 1.5. Anyway, KDE4 launched successfully. That error is not present in session.log. I tested both nxagent 3.5.0.31 and the 3.6.x branch. I have attached both session.log files from the middle of sessions. Also, note that Debian 8 Jessie has libxfont 1.5.1-1, so it would be affected too. -Mike#2