I had a good scare this week. The fancy pants 23" Apple Cinema Display I use with my laptop decided to stop working. I googled around for the LED flashing codes I was seeing and found a odd work around to the problem. The 90W power adapter is prone to failure and using a 150W power supply designed for the 30" display seems to resolve the issue. Apparently just bringing in another 90W power supply will not solve the problem. Whatever...I shelled out $150 for a replacement power supply and my monitor immediately came back to life.