Summary: I have had this monitor for five years. As long as I was using it with a computer running Windows XP up through SP3, it was a fabulous monitor - really great: color resolution, inputs, sharing, you-name-it. However, if you're upgrading to Windows 7, beware! There are no Windows 7 drivers at all, and trying to install the Vista 64 bit drivers doesn't work. Dell chose, for whatever reasons, not to provide Windows 7 support for this otherwise outstanding monitor.
Summary: I am a PC gamer and had this monitor for over 3 years now and all of the sudden the power button stops working after 2 years. It turned out it was hardware problem. The circle shape power button was off and after adjusted it back to the center (used scotch tape to turn), I was able to use the power button. In order to stabilize the power button from moving again, I sealed the power button with the clear scotch tape so it won't turn to side.