connect to 7.5 devel(win32) failed

I am has some trouble when connect to 7.5 devel PostgreSQL server,
see belows

my setup:
=======================
os=Windows2000
server version=the non-MSI snapshot at http://www.hagander.net/pgsql/win32snap/ has been "downgraded" to the latest known working snapshot
path=c:\postgres\bin;c:\postgres\lib
pgdata=c:\postgres\data
TZ=CST

note:
======================
I has NO modify the configure file generated by initdb,
and has NO firewall installed in my server



cmd to run postmaster(run as postgre user):
======================
postmaster -D "C:/postgres/data"

result1: some lines of the log(postmaster)
=======================
LOG: select() failed in statistics buffer: 在一个非套接字上尝试了一个操作
LOG: statistics collector process (PID 1876) was terminated by signal 1

result2:
=======================
When I use pgAdmin III to connect the PostgreSQL server,
a error is returned:

could not receive server response to SSL negotiation packet: Connection reset by peer(0x00002746/10054)

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