So, who has gotten a 191T to work in DVI...

under XP?

What video card did you use?
ATI 9600 SE currently in use here.

I can't for the life of me get this to work,
it's one of the most hair-pulling hardware issues
I've ever run across.

POST and startup screens on DVI OK, goes blank
and 191 into power save at logon screen.

If I uninstall the ATI driver, and just use the
castrated "VGA Compatible", I can get 1024x768
on DVI but no higher. Using ATI drivers, only 640x480x16
in "Enable VGA mode" only.

I'm aware of the 191T having bogus EDID and ID'ing
itself as a 531T on the DVI connector. Surely there
must be a way around this issue.

Analog VGA OK at all resolutions.