First error when opening radiant on a new zm_newmap

Radiant Error

Layered material library is corrupt

GetLastError() = 0
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Second error when radiant open's up

Radiant Error

FATAL ERROR: State.cpp (333) dx.device->CreateSamplerState (&samplerDesc, &gSamplerStates[samplerState] )failed: DXGI_ERROR_DEVICE_REMOVED

GetLastError() = 0
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Third error when closing radiant

Radiant Error
FATAL ERROR: q:\t7\pc\code\tools\toolsgfx\device.h (196) "CreateResource" failed: DXGI_ERROR_DEVICE_REMOVED

GetLastError() = 0
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Can some one Please help me on this I really just want to start working on my custom zombie map ;~; 

dude, i feel you because i have same EXACT error and i have no idea what to do. ill try to make another post and if i get a response ill try to tell you.

dude, i feel you because i have same EXACT error and i have no idea what to do. ill try to make another post and if i get a response ill try to tell you.

thanks and yeah i really dont know what causes this to happen its really upsetting  ive tried looking for fixes but no one seems to know this issue or have this issue 

same