On occasion, after I have created my drawing, I will need togoback into my assembly and change or move a part.   Igoback into my drawings and the part has disappeared but it isstillin the assembly. Sometimes it will come back on its own. RightnowI have a part that is not coming back. I am baffled. Doesanyoneknow what is going on here? ThanksSolidworksDrawings And Detailing