Exposure different in Library and Develop Modules

i'm new lightroom have spent lot of time playing lr , googling trying solve one

 

i have ever tried lr2015cc , on latest version 2015.2.1

issue has existed original downloaded version- 1st installed in aug 2015

camera nikon d750

 

when exporting jpeg image has same appearance rendering in library module - compared using external viewer exported file

this creates problems develop module 1 can make development adjustments

in general library module overexposed , excessively yellow compared develop module

the issue occurs both jpegs , nef(raw) files , not unique files 1 camera

other users have spoken have not reported visible difference bewteen 2 modules ? older version of software though

i aware looking @ preview images when using raw files

 

it hard develop photos when see not on export

while hardware calibrate monitor not fix issue making comparisons on same monitor

i can assume recent bug there no clear reason have 2 different renderings of image

has else solved issue ? there  setting have missed? there fix?

i seem have found fix

edit preferences>performance tab>untick "use graphics processor"

appearance same in both modules

possibly 1 in computer unsupported

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