I am working with a Survey database in AutoCAD Civil 3D 2010. I would like to create a New Network but get a fatal error (Unhandled Access violation Writing 0xc73b0cc4 Exception at 740063h)! I have tried using "imports survey data" and also via Survey tab.
 
It is also noticeable that I can open a newly created Survey database (right mouse over tab survey) but after restart AutoCAD, I get an error message again: Unhandled Access violation Reading 0x9076205c Exception at 9076205ch
Who can help me with this problem?
Thanks.