Hi, I wonder if anyone has tried successfully to install and run Antelope 4.11 on CentOS 5, which currently is kernel version 2.5.18 (whereas the 4.11 CD specifies 2.6.22) Thanks, Hank Hank Ratzesberger NEES at UCSB Institute for Crustal Studies, University of California, Santa Barbara 805-893-8042