The graphics in this model is unknown and I've seen where the unit disables the onboard ports so you can't use them. But it has NOTHING to do with the age as I've been using extended screens since XP days. It's just a matter of the graphics setup but here I can't tell what you have.
So I have an acer monitor my lenovo computer; the acer tech told me since my Lenovo desktop is from 2009(doesnt have hdmi) even if I bought a adapter for the VGI port it would only show a duplicate screen within the other screen rather than an extended screen. The extended screen is what I need; and was wondering if I bought a set of dual screens would it do the same; meaning two duplicate screens rather than an extended screen?