I have recently purchased a number of Dell Optiplex 760s. I am attemtping to image them using my current RIS images. I keep running into the message that " the operating system image you selected does not contain the necessary driver for your network adapter." I have downloaded the drivers from the Dell site and have followed the MS KB article 315279 "How to add a third-party OEM network adapter to a RIS installation". Still no luck. Any ideas?