Students in our department are opening parts from Design Library. Saving the parts under a new file name and modifying them to suit needs. These new modified parts are then inserted into an Assembly. When the Assembly is opened alone, the modified parts revert back to their original configuration. When the modified part file is opened first then the associated assembly file is opened and viewed the modified parts appear as configured post modification. What is causing this annoying problem?
Are you making sure you check the save as copy box when saving as a new name?