Well, strictly speaking, it's not multi-monitor, 'cos there's only one "monitor" connected. And I don't think I can upgrade the drivers, because the card's just that old.

Essentially, I suspect that I'll have to spend some amount of money to fix it (new graphics card or nettop PC with different graphics or a new TV). All of these are attractive -- I like spending money on shiny things -- but I just don't have the spare cash right now.