Formac TFT display suddenly not working help!!! G4 MDD DP1.25

Hi all...could use some pointers here. My formac 17" TFT display has suddenly stopped working on my MDD G4 DP1.25 - I use the standard graphics card. Turned the mac on today, and the display just wont turn on, though the silver light on the display flashes (as in standby) which means it's getting power. I also have a CRT display attached to the same card, and it's working as normal which I presume means that the graphics card is not dead. I tried booting from a different startup volume, same result. Any ideas please?? thanks!

no it doesn't support multiple inputs, it just has an on/off switch and is connected to the radeon 9000 pro graphics card (as shipped with the G4) via the ADC connector. Like I said, the VGA monitor that's hooked up to the same card works ok. And....weirder still, the Formac monitor has USB ports on the back, and although the monitor will no longer work (just the pulsing light on the front suggesting it's in stanbdy mode) the USB devices will still work when connected to the monitor - so this means either the card is half working or the monitor is half working!!! But I need to know which before I spend any $$$. Anyone got any ideas please? thanks!

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    Hi all...could use some pointers here. My formac 17" TFT display has suddenly stopped working on my MDD G4 DP1.25 - I use the standard graphics card. Turned the mac on today, and the display just wont turn on, though the silver light on the display flashes (as in standby) which means it's getting power. I also have a CRT display attached to the same card, and it's working as normal which I presume means that the graphics card is not dead. I tried booting from a different startup volume, same result. Any ideas please?? thanks!

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