Tried searching for the answer, yes! ;) BRAND NEW out of the box PC(Dell Optiplex 980). Fired it up, joined domain, added users and restarted computer. I cant login to the computer with any user name other than "administrator". I've tested the log ins on other PC's and they work fine. Of course, Dell has been no help, they are sending me discs and want me to wipe system. There is no software installed on the computer other than what came with it, not even anti virus or security suite. Any suggestions would be greatly appreciated. J

Hi, Thanks for posting in Microsoft TechNet forums. Do you log in with a domain user name or a local user name? If you add the computer to a domain, please use the following format to login the computer: If you log in with a domain user, type: username If you log in with a local user, type: PC_Name-PC\username BTW, ensure that you type the right password. Best Regards Dale Qiao TechNet Subscriber Support in forum. If you have any feedback on our support, please contact tngfb@microsoft.com Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. ”