CTX Monitor stopped reading on Powermac G5

I own a Powermac G5 and i have been using
a 19 inch CTX ultra screen.
I have been using the monitor with the mac for a while
and it works and looks great.
However the monitor would flicker every now and then when i did not shut it off at night?
Anyway i was editing today and my feet hit the powercord of the monitor and it shut off. I plugged it back in and the green light comes on but no picture on the monitor comes up.
Now i thought it might have been the monitor but when the mac is shut down it usally shows a orange light, just like most monitors do but no matter what its always green on the monitor, even when its unplugged from the Mac.
Not sure if anyone can help since its a CTX monitor but i figured i ask anyway.
Thanks

Generally, the way people work with a third monitor is to add a video card that will feed a video monitor (not a computer monitor).  Not sure what's compatible with a powermac g5.  I've got a macpro and use a blackmagic intensity pro card. 
The main makers of these video cards are Aja, Blackmagic and Matrox.

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    I own a Powermac G5 and i have been using
    a 19 inch CTX ultra screen.
    I have been using the monitor with the mac for a while
    and it works and looks great.
    However the monitor would flicker every now and then when i did not shut it off at night?
    Anyway i was editing today and my feet hit the powercord of the monitor and it shut off. I plugged it back in and the green light comes on but no picture on the monitor comes up.
    Now i thought it might have been the monitor but when the mac is shut down it usally shows a orange light, just like most monitors do but no matter what its always green on the monitor, even when its unplugged from the Mac.
    Not sure if anyone can help since its a CTX monitor but i figured i ask anyway.
    Thanks

    Generally, the way people work with a third monitor is to add a video card that will feed a video monitor (not a computer monitor).  Not sure what's compatible with a powermac g5.  I've got a macpro and use a blackmagic intensity pro card. 
    The main makers of these video cards are Aja, Blackmagic and Matrox.

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