For information on customizing the Novell Login dialog box, see Managing Login in the Novell Client for Windows Installation and Administration Guide located on CD 2 - NCL Client Components in the \client directory.
You can edit the registry and change a setting so that Windows does not display the last user who authenticated. Change the following setting to the value indicated:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\
system
REG_DWORD
dontdisplaylastusername=1