Well, this isn't working out as well as I had hoped. On my master's screen, I'm getting excessive video lag of my slave; for example, if I move forward and stop, the slave will bounce oddly around as it makes the way to the master, even appearing to run through the master before coming to a halt behind it; this only happens if the slave instance is minimized to the taskbar. However, if it's maximized and directly behind the master's instance window, I get the artifacts and tearing. So I can either choose an extremely jerky and difficult to anticipate slave image, or the artifacts and tears. Computers are fucking peachy, really.