Cinema Display 30" problem

Hi
I have a 30 inch Cinema Display from 2006-ish. I have not used it for a while and when i powered it up again a few days ago it was kind of broken.
There is no image from my Mac, only these vertical lines (check the photos). The lines change a bit if I move a window around and using a different Mac does not help.
https://www.flickr.com/photos/[email protected]/15415125321/
https://www.flickr.com/photos/[email protected]/15231698748/
The screen itself appears to be intact. Does anyone know of anything I can try to get it fixed? Or replace a part or two?

If you're not yet sorted - I had similar prob with my then 1 year-old iMac - AppleCare swore blind it wasn't a hardware problem and told me to wipe my hard drive and re-install EVERYTHING...!
Fortunately, I didn't believe them, and hunted thru various forums...and identified that, as I thought, it WAS a hardware prob - and the next AppleCare guy acknowledged it and sorted the repair, finally!
The heat sensor was from a bad batch (that it turned out Apple knew about and could have identified immediately by the serial number, so could have saved me days of frustration and wasted time) and it was erroneously turning the Mac off as what it perceived was a safety thing. Hope that helps...

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