*sigh* I give up.

My most sincere thanks to all the people who offered to send me a
video card. I spent an entire day futzing around with a video card
I "borrowed" from my roommate's computer while he was at work, and
determined that it's in fact my motherboard that has gone wonky.

So, I can't really do any FreeBSD work until I get a new motherboard,
but given that I just made a tool of myself by asking for equipment
that turned out not to be the source of the problem, I'm not going to
ask for one here. My thanks to all who offered me a new video card;
I'm glad I didn't take advantage of any of your offers before I found
out that the card wasn't the problem after all.

*glares at the stupid no-name brand discount motherboard*