Missing Ribbons - The Ribbon does not have any tabs or panels currently loaded
Upon launching Civil 3D with the Civil 3D workspace you do not see the Ribbon; instead it looks like this.
This happens when the workspace was not loaded properly after launch. It can also happen if following key was changed.
This key controls network vs. standalone licensing type. When this key is set to other than what's originally installed and program is launched unsuccessfully. After that key is reset back to original Civil 3D will have successful launch but the ribbons will not load.
To resolve this issue do following:
1. In command line type WSCURRENT
2. Type Civil 3D
3. Program will reload Civil 3D workspace
4. Type WSSAVE and overwrite Civil 3D workspace (or click on gear-like icon at the status bar and choose Save Current As)
5. Next time you run Civil 3D program will load Ribbons