Bert, I tried your suggestion. I'm still a bit stuck. I'm doing a calculation within the property module, and it calls the dynamic CPHF module followed by the CPHF module. The "set cphf: thresh" commands sets the correct tolerance for the dynamic CPHF module, but it defaults back to 1d-4 for the second call. I apologize if I'm missing something obvious.
I was wondering if there was a way to change the tolerance and convergence criteria in the CPHF module. Specifically, I want to drop "tolerance = 0.10D-03" and "Convergence 1.0D-04" by a few orders of magnitude. Thank you.