====== Empty AutoCAD ribbon ======

===== Symptoms =====

AutoCAD ribbon is empty with message "The Ribbon does not have any tabs or panels currently loaded"

===== Problem =====

File Acad.cuix is corrupted or missing

===== Resolution =====

1. Close AutoCAD \\ 
2. Copy file Acad.cuix from C:\Program Files\Autodesk\<AutoCAD version>\UserDataCache\Support to <%appdata%>\Autodesk\<AutoCAD version>\<Rxx.x>\<language>\Support \\ 
3. If ribbon still corrupted, type change workspace and back to default workspace \\