DLL problems - cannot logon

Hi There, Any helpful resource will be highly appreciated. My laptop cannot logon on to Windows. It says user interface failed and I need to contact system administrator to change DLL or restore DLL to original. Unfortunately I don't have my system restoration kit. I have called Toshiba and purchased it but it will take days before I receive it. Is there another way to resolve this problem? What does it mean? What can I do? Please help!!!

Welcome to WTT Forums.

Give this a try:
http://support.microsoft.com/kb/836683