Ctrl Alt Del Only Goes To Cancel Button

Windows 7 32bit new install of 2 weeks. No changes that I can think of prior to the login problem. Windows boots to Ctrl Alt Del and when that is entered a Cancel button appears on the screen. when the cancel button is pressed the Ctrl Alt Del is back. I have tried the follow to fix the login issue. Remote Registry connection to create a AutoLogon by adding (DefaultName/Password/Domain) etc. That registry hack worked in that the Ctrl Alt Del window no longer came up but it then went directly to the Cancel button. Next I tried doing a restore to an earlier date by booting from a Win7 DVD. Results were NO Change. Then I tried doing a boot repair booting from the Win7 DVD. (and as the problem isn't with the boot, it is with the logon there was NO Change)