D3D11 to OpenGL Problem

[MiKY11]

Hi
Ive been playing with D3D11 Backend for a while
And i decide to change it to OpenGL for Shader To work

But when i switch to fullscreen with my game icon on it its crashed
And when i play game too

Before i i use D3D11 i can use OpenGL, i can use it normally even from 0.9.9 version
Im using AMD Catalyst

Anyone know what problem causes this?
Thank You