Occurs when I am trying to raise/lower a group of feature lines (break lines) within my grading plan. As soon as I enter the value to raise/lower and hit enter the error comes up and Civil closes. Using Civil 3D 2013 and it is up-to-date (all patches, etc. installed). Know it is probably a windows registry error related issue, but I do not want to waste my afternoon uninstalling and re-installing Civil to take care of the issue. Windows 7 64-bit operating system.
Have you tried Recover/Audit/Purge the file? This usually works.
Here's the solution:
Read post 8 of 14, that is the method that works.