I'm running 10.8.5 and Lightroom 5 (although the problem was present in previous version of both operating system and Lightroom)
While browsing and rating images I lose the use of any left clicking within Lightroom. I can still go through the images using the left and right arrows and the right click will work on my mouse, but anything within the lightroom working space will not left click.
Although all menu items at the top are accessible, I need to restart Lightroom to get left click to work again within the lightroom window. Any ideas?