I downloaded LR6 to a new computer HP Pavilion. Windows 10 and when I try to edit in Develop all I get is a blue screen. Photos are .dng but when I click the before/after button, I get a partial view of the photo and part is still the light blue in the after section. When in the Library module, the photo is able to be seen but as soon as I click on the Develop, I see a flash of the photo and then the screen turns all blue where I would view the photo. I have opened both the old and new computer and compared each element and they are identical except for the blue screen. I wonder if it has something to do with the Loupe?
Go to Edit > Preferences > Performance, and uncheck Use graphics processor.
Thank you. It worked!