**Latitude E5540**
Operating system: Windows 7 and graphics card : Core i5 intel
**Blender Version**
Broken: (example: 2.69.7 4b206af, see splash screen)
Worked: (optional)
**Short description of error** Cannot import name prop
**Exact steps for others to reproduce the error** yafrray will install, but cant enabled. No yellow sign with "!" there is the " jumping man" and the small box for the ok sign
Based on a (as simple as possible) attached .blend file with minimum amount of steps