using an HDTV as a PC monitor

[Xylob the Destroyer]

i just got a Sony KV-36HS420 HD-ready tv --> http://www.sonystyle.com/is-bin/INTERSHOP.enfinity/eCS/Store/en/-/USD/SY_DisplayProduc...4%22to36%22TVs
it supports 480i/480p/720p/1080i via an HDMI input
my video card is an ATI All-In-Wonder 9000 Pro with a DVI output interface
when i connected the TV to the video card and booted my PC, everything seemed to be going OK -- got the screen where you can press Delete to go into the BIOS (looked GOOD, better than on my monitor!), got a good P.O.S.T., and then it went to the Windows XP splash screen that has the little blue progress bar at the bottom (also looked awesome!).
then it rebooted
and did it all again, & again, & again, & again, & again, & again...
endless cycle of reboot
obviously it works as a monitor, otherwise i wouldn't see the P.O.S.T. or the Windows splash screen
i have already gotten all Windows updates, updated all mobo/chipset drivers, updated mobo BIOS, and ensured that I have all the latest ATI drivers for my video card

I asked ATI (via email) for assistance on this and they suggested:
1 going into Device Manager and uninstalling all monitors
2 shutting down
3 connecting the TV again
4 rebooting.

when i did this, it saw the TV as a flat panel LCD (which it SO isn't) and it does this screwy 'widescreen' resolution that won't fit on the screen - also won't let me change it!
so how can I make Windows recognize the damn thing?
Sony doesn't offer any kind of help/support/whatever for this kind of problem. Micro$oft's website is an endless maze of senseless non-information
is there some kind of home-brew driver i can get??
do i just need to install some program/software????
what do i need to do?

for now i still have my ancient 17" crappy monitor hooked up and am using the 2ndary out on the card to connect with S-VIDEO to the HDTV -- S-VIDEO is looking like ass and just don't cut it
somebody please help, DOOM3, PainKiller, & Half-Life2 are waiting to be played in glorious 36" hi-def!



TIA!!!!!

[edDV]

see my reply in the other forum. Reply there I never come here.

[glockjs]

see my reply in the other forum. Reply there I never come here.

what other forum out of curiousity

[glockjs]

eh, nevermind....i see it..i thought u meant a whole different website forum

[edDV]

DigitalTV