We recently tried to upgrade to some newer AIX hardware. We went from a uniprocessor to a 4-way server. I'm now getting segmentation faults when I try to run the mercator program. We are zeroing in on the fact that the old machine used the unix_up kernel, and this new one uses a unix_mp kernel for multi processor machines. Anyone else run into something like this before? Is there something I need to configure differently in the mercator directory somewhere?