Shutdown every two weeks

From: rabbit (anonymous_at_discussions.microsoft.com)
Date: 04/17/04 

Date: Sat, 17 Apr 2004 07:57:36 -0700

My sbs2k3 shuts down every two weeks at the same time. It
is the only server in the network. The time is always
within a few seconds of exactly 2 weeks. Any ideas?