I recently downloaded the most recent version of lighroom 5.7.1 on Windows 8 laptop. I have been operating 5.4 for over a year without problems. Haven't used it in over a month...busy, busy and when i opened it the editing tools would not adjust on the main screen. you could only see the adjustments on the secondary window or lower film strip. They will take effect if you switch to the next picture but, what good it that? Please help!!!