I’m completely unable to find an answer (though this Russian forum might have something), so I’ll give ten bucks via PayPal (or whatever) to the first person to give me a working answer to this question:
How do I force an ATI X1550 card to output YPrPb signals on VGA under Windows Vista?
Even if it’s a stupid answer, if it works, I’ll pay you. It’s probably a registry key, or maybe there’s software, or maybe the Russians know something. If I have to buy the ATI HDTV dongle, and you can confirm that for me, I’ll give you five bucks.
Thanks for the assistance.