I have a 3.5 year old Macbook Pro, 10.6.8. I run Time Machine on a WD My Book II. I tried to erase many of the old backups and now my trash will not empty anything. IT says ERROR CODE -8003 I tried using Terminal following the commands on this page (http://support.apple.com/kb/HT1526) and still it did not empty. I can find nothing on the net about -8003. Any help?