Xorg config for dual-monitor Matrox Parhelia

[Alex]

Hi,

I have a Matrox Parhelia AGP dual-head card that I can't seem to get
to work properly on FC12 i686.

Here is the Xorg.log output:

(--) PCI:*(0:3:0:0) 102b:0527:102b:0840 Matrox Graphics, Inc. MGA
Parhelia AGP rev 3, Mem @ 0xd8000000/134217728, 0xe1000000/8192, BIOS
@ 0x????????/131072
Kernel command line: ro root=/dev/mapper/vg_alexdesktop-lv_root
nomodeset LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc
KEYTABLE=us rhgb nouveau.modeset=0 rdblacklist=nouveau

Using system-config-display, it properly recognizes the card, but
won't let me configure the dual-head part. I've tried to have it build
the xorg.conf on its own, and that didn't help. What is the proper way
to configure this card? How well supported is this card?

Thanks,
Alex