VIA EPIA CN10000 with widescreen resolution under XP

I've been running a VIA EPIA Mini-ITX board for my home media center.
It's awesome in general. It's got a small casefan that I slowed down
and a small 2.5in 10GB hard disk that's got plenty of space for my
purposes.

However, there's one annoyance that I haven't figured out yet. At
first I just ran minimyth... no problem. I can drive my LCD TV with
the VGA connector at the maximum resolution with this modeline:
"1360x768" 85.50 1360 1424 1536 1792 768 771 777 795

But now I dual-boot to WinXP Home so that I can watch stuff online
(NetFlix / Sci-fi / Hulu / etc...)

I've tried all the drivers I can find on the VIA website but can't get
XP to go to 1360x768. Since the TV can't tell the difference (without
manual intervention) between 1024x768 and 1360x768 I end up running XP
at 800x600 (bleh!) to save the trouble of changing the TV config every
time I swap to the other OS.

Anyone have experience with this board and found a solution to this
problem?