If I navigate to a SolidWorks file or drawing, and right click on the file itself, a menu of options appears. One of those options is "Restore Previous Versions." I used this feature occasionally when an adjustment to a part or assembly caused other problems, and it was easier to revert to the previous version that to try to undo all of the changes. However, when I just tried to do this now, I got a message "No Previous Versions Available." I knew this was not the case because I had just altered the previous version myself! I asked one of my co-workers, and they said that it was not working for them either. Can you please help me resolve this?