I typically export drawings from solidworks into draftsight to make completed drawings.  My models typically are surface based.  When I open the drawings in draftsight it simplifies a lot of the curved lines into straight lines.  If I select the lines and delete them, then cntrl+z the lines come back as correct curves.  I assume that its a resource issue and draftsight is trying to protect me from large files running slowly.  My computer is more than capable of handling it though, how can I make it so the curves are always correctly displayed?