This is happening to me with 2 different Dell model optiplex 740 and Dell d690. All other models are working fine. Problem of the blank screen occur when: I type my credentials next screen computer name and OU, next screen where it says Warning, all information will be deleted you said the next screen then next screen getting the following "the following settings will be applied to this computer installation. Verify these settings before continuing. Computer account: brunod690 Global unique ID: 44454... Server supporting this computer: sashqokwsus to begin setup press enter" The next screen is blank In the optiplex, running the sata drive, ati 1300 videocard, I even removed the ATI and use the onboard Nvidia card with the same result. Haveone have an idea what I should look for?