Locked out of task manager

From: Iamjamesb (Iamjamesb_at_discussions.microsoft.com)
Date: 07/31/05 

Date: Sun, 31 Jul 2005 07:18:01 -0700

When I pres control Alt Delete, it says it has been disabled by the
administrator on WIN XP, however I am the administrator, how do i regain
access ??

Thanks