Of course...I always switch my monitor cable back and forth.
I was able to to boot into safe mode with the card, so I did go back and uninstall the drivers...I used the device manager to do that, if you're curious. Then I re-installed all the drivers, restarted, everything going smoothly...
Then I switched to PCI once more in setup and...black screen again!
What on earth is going on here? Are the integrated graphics causing a problem in some way? Is there some switch on the motherboard I'm not seeing?