My Dell Computer shuts down itself with the message below.

From: KUIWANG (anonymous_at_discussions.microsoft.com)
Date: 05/04/04 

Date: Mon, 3 May 2004 20:06:08 -0700

C:\Windows\System32\Lsass.exe
Has terminated unexpectedly with code
1073741819

This has bothered me for several days. Please help.