New Nightforce Ballistic Program......Trajectory Validation, Problem Solved Thank You I've got this posted on another thread, but no bites. I've been playing around with the newest Nightforce ballistic program for about a year now. The paper says Version 9.5 for Windows PC. I've managed to figure out just about all the features, except for TRAJECTORY VALIDATION...............It simply doesn't work on my program! I've used the same feature on an older PPC version and it changed the velocity to match drops....as it should have. However, when I type the same exact data into the new PC version it always says "calculations did not converge".......anyone else having this issue? Anyone heard of a patch from NF or Exbal that will solve the problem? I click "trajectory validation" option I enter a distance (example: 700 yds) I enter an amount under sight adj used (same amount the program gives for comeup, example: 12.5 moa) I enter a number under amount of measured error (Example: 4 inches) I click calculate. Always get the same popup that says "calculations did not converge" no matter what number or distance I input. Thanks in advance.