"When I try to open Civil 3D 2014 I get a fatal error: Unhandled access violation writing 0x006c exception at f3256d5ah." These numbers may vary.
If you see such an error you may want to check a few things before you decide to reinstall. Likely the issue may be with the graphic drivers as this problem is often caused by an incompatible driver installed on your machine.
Via http://beingcivil.typepad.com/my_weblog/2013/11/civil-3d-will-not-open.html
Comments