Quote:
Do you need to turn off "DualView" in a control panel or something?


Ordinarily, you need to turn "DualView" on. In my nVidia control panel, it offers the following options:

- Only use one display (Single)
- The same on both displays (Clone)
- As one large horizontal desktop (Horizontal span)
- As one large vertical desktop (Vertical span)
- Configured independently from each other (Dualview)

So, you almost always want to use Dualview, which allows Windows to handle the displays individually.

This has worked fine for me when I've had monitors of different sizes, although I'll admit that I didn't try to drive either monitor at more than 1600x1200.

Right now, both of my monitors are the same, so it's entirely possible that nVidia or Microsoft broke something.
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-- roger