exeption when running the sample programs

Hi,

I'm new user for opencascade. I'm working in the Linux platform. I'm facing problem when I run the exaples programs in the linux platform. I have loaded jav1.2 and jre1.2. When I started to run ./runme.csh, the following error it gives:

--------------------------------- Exception in thread "main" java.lang.UnsatisfiedLinkError: /usr/lib/CASCADESamples/java/libSampleGeometryJni.so: libOpenGl.so: cannot open shared object file: No such file or directory ----------------------------------

I hope here the exception is due to the missing file "libOpenGl.so". I have searched this file in the system. It is not available any where.

Please any one of you kindly help me to run the examples program. Thanks a lot in advance,

Regards, Mani