Apple cinema Display problem after update

I had a similar problem to lain Maclreud
Immediately after updating to 10.4.11 and rebooting the toparea on my cinema display went dim and I saw the 2 short, one lon blinks on my power display LED
I didn't try it on another computer yet or try to change my power source but I may need a new backlight card as well. Please post if you have had similar problems after updating and suggest possible solutions.

Have you tried the Command-Option-P-R keys to reset the PRAM? (Maybe the upgrade has messed up the display settings?)

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    I am having a similar problem as well. When I attach my 23" cinema display to my MacBook core 2 duo, my connection to the internet immediately stops working. I have tested this several times and it happens every time I connect the Cinema Display to my MacBook. When I disconnect the Cinema Display, my internet connection works perfectly again. I'm stumped as to why this happens.
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