Mouse and keyboard controls disabled.

I am running windows NT workstation on an IBM’s T21 labtop. After installing an intelliPoint software for a microsoft intellimouse both the keyboard and the mouse stopped working. Both controllers seems to work when the system is booting up in DOS mode. But locks these controllers when NT takes over. At the ” Begin Logon” stage the keyboard would not respond if you press ctrl+alt+delete keys to access the Winlogon Dialog box. I tried booting with the last known good configuration but it didnot work.

Please Help