In the develop module, i can not get my photos to appear in the large screen, they only show in the small navigator. The large viewing screen is blue with a white X. When I select the Y key, it shows before and after. The before is my original photo, but the after portion is still blue with a white x, my photo will not appear. Any ideas?
Seems like this issue is due to graphics card.
You need to go under Lightroom Preferences> Performance and uncheck the option to use graphics processor.