Problems with my viewport - doesn't accurately reflect lighting.

[Anonymous]

Hi guys, does anyone know what is wrong with my viewports? with "Use all lights" turned off/on - they look like they do in the image below. I can't see any changes to my lighting so it's really hard to light my scene.  

 

[Anonymous]

Gonna have to switch back to mental ray, have absolutely not idea why it's like this, also my glass material is black in the viewport regardless if I "use all lights" or not.