Anyone know a place that does LCD monitor repairs?
Well, never mind. Got brave, tore open the panal, and found a loose connector between the power module and the signal input board. Plugged it back in nice and tight, and now I have 2 Samsung 181Ts on my Shuttle.

Not really sure if I want a dual DVI card right away though. I'll be getting a 15 inch Powerbook soon, and until I can afford a DVI KVM, having one free DVI port between the two monitors is nice.