Hello, I'm having this problem, too. I have Ubuntu 11.10, installed Pymol 1.4.1. by using the Ubuntu Synaptic Manager. Pymol starts but I'm getting the following message:
Detected OpenGL version 2.0 or greater. Shaders available. PyMOLShader_NewFromFile-Error: Unable to open file '/usr/local/lib/python2.7/dist-packages/pymol/data/shaders/default.vs' PYMOL_PATH='/usr/local/lib/python2.7/dist-packages/pymol' PyMOLShader_NewFromFile-Warning: default shader files not found, loading from memory. PyMOLShader_NewFromFile-Error: Unable to open file '/usr/local/lib/python2.7/dist-packages/pymol/data/shaders/volume.vs' PYMOL_PATH='/usr/local/lib/python2.7/dist-packages/pymol' PyMOLShader_NewFromFile-Warning: volume shader files not found, loading from memory. What could I do? Best regards, Julian

