I work in an office where one computer running Acad 14 attached to HP 650c prints very fast. I think he uses the HP driver that you can configure in Acad by typing HPCONFIG. I print from ADT 3.3 and the 650c always runs out of memory. Selecting print directly from my computer hogs the resourses and one page can take 15 minutes. I have downloaded the latest driver from HP? What to do? Thanks