XP logon screen hang: ctrl-alt-del

Archived from groups: microsoft.public.windowsxp.configuration_manage (More info?)

After the reboot, the Logon screen reveals and I need to press ctrl-alt-del
buttons together in order to supply my username and password to log onto my
local network. Before any button is pressed, the mouse is responsive.
However, as soon as I pressed the ctrl-alt-del buttons or any button on the
keyboard, my machine hang and mouse ceased responding. I've tried different
booting modes but the problem remains unsolved.

Please could you advice me ? Thanks