Ever since upgrading to CS6, when I click Levels>Load preset, I can no longer search in the window for the file. Previously, I could type in the file name and it would come up and I would select it. Now, when I search for the file name, there are no results at all. The file can be found by doing a regular search in a Finder window, but not through the window that comes up from the Levels window. I've reindexed Spotlight, and that has had no effect. Someone else on the General Photoshop forum tried this and they had the same experience, and since it used to work, it seems more like a bug than a problem with the OS.