My copy of LR5 has suddenly stopped operating in Develop mode.I can go there from library mode, but when I try to do anything, none of the sliders work and the crop function shows no image, just white space. i've tried to delete and restore the preference file to no avail. Need help, Lightroom 5 is useless in this way.
Please try creating a new catalog and import few images just to check it if that works or not in Develop module, If the New catalog also don't work update the Graphics Drivers from the Manufacture website.
Once you update the driver or may be its already updated, then you can try reinstall Lightroom 5.
Download link: Install Photoshop Lightroom
Those two things did not work. Now what?
After a reboot, the develop sliders go back and forth, moving the histogram, but nothing happens to the picture. When I try to crop the photo, the image disappears--but, the square changes shape as normal with a blank image.