Hello all, I'm new in this forum. I would like to have your help as I am facing the following problem: I've installed the last Gephi release (Gephi 0.8.2-beta) for linux, which is an interactive visualization and exploration platform for all kinds of networks and complex systems, dynamic and hierarchical graphs (http://http://gephi.org/). The Gephi documentation specifies that OpenJDK is not supported, Sun JDK is required. In addition, OPENGL is required. My system is the following: Distribution: Fedora 19 (i686) (32 bits) Cinnamon 1.9.2 Kernel: 3-11-3_201.fc19.i686.PAE/# 1 Laptop: HP Pavillon dv6000 Processor: Intel Core 2 CPU T5500 1.66 GH Memory: 2 GB Graphic card: NVIDIA G72M GeForce Go 7400 My laptop is on dual boot Windows Vista Home on which I have no problem with Gephi. It's only under Fedora 19 Linux distribution that I have a problem. I run the following command: export LIBGL_DEBUG=verbose export MESA_DEBUG=1 export EGL_LOG_LEVEL=debug cd /home/rene/gephi/bin ./gephi & glxinfo |grep "OpenGL version" yum list mesa\* I get the attached file log. I suspect the problem coming from nouveau or mesa with my nvidia card. Could someone help me to fix the problem. Many thanks. René --