Postgres service fails to start on Windows 2003

Hi All -

I'm having problems getting the PostgreSQL service to start.  This
started happening after I changed a disk quota to allow for larger
database sizes, and no other configuration has changed.  Here's what is
in the event log.  I've tried rebooting several times, and deleting
postmaster*.* files as well.

2009-02-18 14:02:51 PST LOG:  loaded library
"$libdir/plugins/plugin_debugger.dll"

2009-02-18 14:02:51 PST LOG:  could not bind IPv4 socket: No error
2009-02-18 14:02:51 PST HINT:  Is another postmaster already running on
port 5432? If not, wait a few seconds and retry.

2009-02-18 14:02:51 PST WARNING:  could not create listen socket for "*"

2009-02-18 14:02:51 PST FATAL:  could not create any TCP/IP sockets

Timed out waiting for server startup

I'm totally out of ideas, anyone know how to fix this?  Thanks!

Mike