newly installed LR, no previous versions. it all appears OK, I can navigate the library etc. When i select Develop, the controls around the preview screen (middle portion) are navigable. as soon as the cursor enters the center pane it errors out- see error message below. even if there is no image in the pane.
"A problem caused the program to stop working correctly. Windows will close the program and notify you if a solution is available"
it doesn't actually close it- but won't let you do anything until i click the "close program" button.Photoshop Lightroom