I have just updated to LR 5.2 and found that Auto Tone now seriously over exposes the images. It was working very well in version 5, but now does not work well at all. Just to be sure, I installed my version 5 disk on another PC and Auto Tone worked as expected. Then, after updating that PC to 5.2 the function was again broken. Has anyone else experienced this? It seems strange that it is repeatable on two different PCs, both running windows 7, one of which is a 32 bit machine and the other a 64 bit machine.