recently I saved a detail dwg I copied from a layout, and then had to change the name.  In trying to make the change, I somehow seem to have lost everything I have been working on for since I downloaded the system.  Any idea why?  Also, when I now open the DraftSight system and go to the "open file" icon on the tool bar, instead of showing me all of the drawings that are loaded into the system, such as templates, Pump Housing dwgs., etc, the only thing the sys. shows me  is an Windows style window showing only the dwg of the one I ghanged the namd on.  Nothing else.  I've seardhed for all the other items usually found in the dwg file window, but seemingly on where to be found.  OMG, I've spent lots of time with layouts and dwgs, is there any possibility of recovering any of this????  Sure would appreciate some help.