Drawing Troubles

I've created new drawings from existing drawings using thesave as a copy function. The new slddrw, sldasm & sldprt arecreated, modified & printed then closed. When I now open thesenew files the sldprt & sldasm files are correct but the slddrwfiles are a hodgepodge of lines and dimensions of both the new partand the old existing part from which it was created. The only fixI've found is to go back and edit part and assembly then rebuild.This never happened in 2008. Is there a fix or do I have a settingwrong? SW 2009 sp2 ~ winxpSolidworksDrawings And Detailing