Krish & Paul, Many thanks for the quick advice. I have downloaded the mesa-libGL-6.5.1-7.2.el5.x86_64.rpm from the RH network to my desktop. However, a "smart" window pops up reporting that "a newer version than /home/jjuranek/Desktop/mesa-libGL-6.5.1-7.2.el5.x86_64.rpm is already installed". I select "OK" anyway, but a new window pops-up reporting that "No packages were given for installation". How do I over-ride the "smart" system to install the legacy driver I need to make sure that everything is installed in the proper place(s) to make tksurfer happy again?
Thanks so much, Jenifer