"member not found"

Every time when I open EndNote XI it gives me the same error massage: Member not found.I 'm close the massage and after them the program start. Does anybody know what the problem is? 

This message can appear if the Cite While You Write (CWYW) tools from a previous version of EndNote are in the Word startup folder. To fix this problem, close Word browse to the Word startup folder. The default location of Startup depends on your version of Windows.

Windows Vista:

C:\Users[YOUR USER NAME]\AppData\Roaming\Microsoft\Word\STARTUP

Windows XP/2000:

C:\Documents and Settings[YOUR USER NAME]\Application Data\Microsoft\Word\Startup

Note: If you cannot find the specified folder, your Windows preferences may be set to hide the folder. In Windows Explorer go to Tools / Folder Options / View tab and make sure that “Show hidden files and folders” is selected. Press Alt to view menus in Windows Vista.

Delete any EndNote files in this folder. Now when you use EndNote X1, you should not receive this error message.