I have a Mac Pro with a DVI display, and I got a new DVI display for it.
I want to unplug the (only) display, and plug in the new display to that DVI port. And/or, unplug the existing display, and plug it into a DVI port on another (slower) graphics card. (Does that make sense?)
I've hot-swapped DVI displays on Mac laptops for years, but I've never done it with a Mac desktop. Will a Mac be cool with temporarily having zero displays?