Hi all: I've got a new 27 in Cinema display and I am having a problem with getting it to adjust to its native resolution while using a new Lenovo thinkpad T420s with Windows 7 64 bit. The maximum resolution Windows will allow is 1280x720, and will not allow me to go any higher. I have tried both the Atlona dvi-MDP adapter, and just using a displayport-minidisplayport adapter, but nothing seems to work. Yes, i've plugged in the USB cord from the ACD to the PC as well. There is nothing wrong with the monitor, it works fine and will display the full resolution when using a mac. When I attach my Lenovo to my 27in iMac and use it as a monitor, using the displayport to mini displayport adapter it displays in its full native resolution no problem. Anyone come across this issue? Any help would be very much appreciated. Thanks!!