I got Vista Ultimate w/ SP1. Anyway, I replaced logonui.exe with a custom one from wincustomize and it has fkd up. It does the boot process fine but when it comes to loading the login screen, all i see is a black screen, i can move the mouse around but I can't login.
It comes up with a lil dialog box saying logonui.exe has had to shutdown or something. Then it fails to ever load the logon screen.
What to do :/ I've tried looking around google, but chkdsk /r and chkdsk /f and chkntfs have all failed as has /sfc thingy.