Hello: I have had this problem for a long time, but it's got to the point where I need to fix it..... If I choose in an File Open dialog the "All my files" link on the left, the dialog shows the spinning wheel at the bottom left corner, mouse icon turns to the beachball, and the whole application becomes unresponsive. This happens on ANY application. A just had to kill a LIbreoffice session, because the beachball would not stop. A test in Preview lead to the same situation, but Preview came back in some 20 seconds. While this is happening, the "coreservicesd" seems to be taking some 50% of an CPU core, with the application taking again close to 50%. I am on 10.8.3, but this problem has been with me for a long time, so I do not think it is 10.8 related. Thanks for any info/pointers. PaulCC.