Windows 7 Ultimate SP1
Geforce MX 660 TI
Broken: 2.78c (and old versions)
Short description of error
If I turn on Viewport render mode to "Rendered" and I want render scene with "F12" (with Blender Render), usually crash Blender. But if Viewport render mode not "Rendered", this not happen. And happen this for any scene...
Exact steps for others to reproduce the error
Based on a (as simple as possible) attached .blend file with minimum amount of steps