Mac OS 10.5.6 with Reader 9.x installed. Everytime that we open reader on this computer all of the past PDF's open along with it. If a new PDF is opened that too is added to the list of documents that will reapear if Reader is reopened. Have removed all of Reader 9 along with preferences and after that the process starts all over again. first one will be there, close it, reopen it that one appears. Open another document, close it reopen it, both reappear. on and on till you remove com.adobe.reader_x86_9.0.plist. Then you start all over again. Any ideas?