Problems with permissions after CYGWIN upgrade

I just upgraded to the latest version of cygwin and now I am unable to connect
to the postgres database except from the "postgres" account (I am running
Windows 2000).

When I try to connect with psql from my normal account, I get the following error:

psql: could not connect to server: Bad file descriptor
Is the server running locally and accepting
connections on Unix domain socket "/tmp/.s.PGSQL.5432"?

The file permissions in /tmp are:

total 5512
drwxrwxrwx+ 2 Administ None 4096 Mar 19 08:57 .
drwxrwxrwx+ 9 Administ None 4096 Dec 12 12:59 ..
-rwx------ 1 ???????? None 51 Mar 19 08:57 .s.PGSQL.5432
-rw------- 1 ???????? None 31 Mar 19 08:57 .s.PGSQL.5432.lock
-rw-rw-rw- 1 SYSTEM SYSTEM 3916520 Mar 19 08:56 MultiFileMsg
-rw-rw-rw- 1 SYSTEM SYSTEM 22032 Mar 19 08:56 MultiFileSem
-rw-rw-rw- 1 SYSTEM SYSTEM 202768 Mar 19 08:56 MultiFileShm
-rw------- 1 ???????? None 1499136 Mar 19 08:57 cygipc_0

Everything use to work file. Any ideas on what might have changed, what the
problem is, or how to work around it?

Thanks,

David Robison