Operating system and graphics card
Windows 7 sp1 - EVGA 1080ti version: '4.5.0 NVIDIA 397.93'
Broken: (example: 2.69.7 4b206af, see splash screen)
2.8 ALPHA as of 07 July
Short description of error
Simply clicking on the Material Tab in the properties editor will close Blender .
Exact steps for others to reproduce the error
Based on a (as simple as possible) attached .blend file with minimum amount of steps
As above - one click on the button closes Blender