I have been working on a drawing and sometimes saving it successfully, however sometimes when I try to save, vectorworks stops responding, and so I have to shut it down. When I reopen it, the file repairs itself (maybe to the last backup save, I'm not sure), but it calls itself .recover, and it won't let me save it at all or save it as something else. Also a -VWTMP file has appeared in the drawing folder bearing the same name as my troubled drawing. What is going on, and how can I sort it out?
Jenny