I am attempting to modify a User ID via the Account tab (the fields of Windows 2000 Login, Pre-Windows 2000 Login and the drop-list next to the Windows 2000 Login field). When I click Apply after making the changes/additions the following error appears: "Unable to verify that the user logon name does not already exist in the enterprise. The global catalog search returned the error: The search filter cannot be recognized." What does this error mean? Thanks.