After installation of 2008 version of AutoCAD I am facing a big problem with my drawing opening because whenever I try to open my drawing it tooks almost 15 minutes to open a size of 12 mb drawing, even my computer configuration are dual processor and 2 gb ram but problem is still exist. moreover is that with copy & paste from 1 drawing to another drawing it also tooks 15 minutes to copy & paste from drawing to another drawing plz help me in this regard asap. thanks jawed