I use a Mac with OS 10.6. When I launch Photoshop CS6 through Lightroom 4 I get a message saying the location of Photoshop has changed. This is true as I am a bit of a folder freak and after I installed Photoshop , which by default is placed in the Applications folder, I moved it to a folder within the Applications folder. My question is this, the window containing the location moved message has two options, Update Location and Don't Update Location (not exact wording). I have repeatedly clicked the Update Location button at which time I am asked to enter my password. I enter it and Photoshop opens, however I continue to get this message every time I open Photoshop through Lightroom. I have also clicked the Don't Update button and Photoshop opens (no password needed). To me this seems like the location of the program is known, or else why would Photoshop open, but for some reason this message window just hasn't been informed of the fact. It's not a real deal killer, as Photoshop does open, but it is one more click required for me to use the Lightroom/Photoshop connection and is kind of irritating.