Hi, I just want to thank everybody who helped me with OSMesa advice. You saved me! The following worked for me: 1. I found libOSMesa.a library in XFree86-static-libs package, and installed it. 2. I added -lOSMesa in the makefile. 3. I added the path to libOSMesa.a to the LD_LIBRARY_PATH environment variable. That did it for me. Thanks again! Jan