I had a dell E551c monitor.I don't had its display driver.W2Kserver is now taking the default display moniter.So I cannot change the display.What I want how to install the driver?

You need the driver for the video card in your system not the monitor.... Look for the video driver on dell's site for your computer.

Normally you don't need a monitor driver, except in some rare cases, especially with Windows 2000. Perhaps you are looking for a video driver, not one for the monitor? This page lists a driver for the e551c monitor, just search for that number on the page: http://search.dell.com/results.aspx?c=us&l=en&s=dhs&cat=sup%7Cdyd&cs=19&k=latitude%20cp%20display%20driver&img=True&sum=True&qmp=10&qo=0&eh=NoEvent You may need to register for a logon account with Dell to get access to download. Also, Dell is supposed to be #1 in support, you may want to call them for help with drivers and/or video display settings.