Display does not light up!

My 20" imac (2006) went to sleep and the display never turned back on. Shining a light to it shows that the lcd part is working, but the backlights don't come on. So far, I have...
Adjusted the brightness, both with the keyboard and through system preferences while screen sharing from a laptop.
Reset the SMC
Reset the PRAM
Reseated the RAM
Have I missed anything? Anyone else out there experiencing this? It is out of warranty and has already had multiple things fixed while under the 3-year warranty... the power unit had to be replaced twice. I'm not sure I want to start putting money into it. Advice? Thanks in advance.

Hi jkswans
Welcome to Apple Discussions
Contact Apple, unofficially they have been repairing some 2006 iMac Display issues out of warranty. Take some time to read thru the following Apple Discussion Thread, it's well worth it if you can get them to fix your iMac.
http://discussions.apple.com/thread.jspa?threadID=1580232&tstart=0
Dennis

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