Unable to start PostgresSQL Server

PostgreSQL Version: v1.8.2
System: Windows 2000 Server

I am having a problem starting the PostgreSQL server.  I
get the following Log errors:

LOG:  unrecognized win32 error code: 487
FATAL:  could not reattach to shared memory (key=5432001, addr=015E0000): Invalid argument

What do I need to do to repair this?

Thanks!
Dan

No virus found in this outgoing message.
Checked by AVG Free Edition. 
Version: 7.5.487 / Virus Database: 269.13.27/1020 - Release Date: 9/20/2007 12:07 PM