ATG client process hangs in Windows 2003 EE while running in Mustang b60

In mustang b60, atg client process hangs after running for about 3 days and 11 hours in Windows 2003 EE.
The troubled process id is 1528.
The popup message box for the error left opened, and I attached the screen shot here.
You could do VNC or remote desktop to check it.
The Windows debugging tool has been installed on the machine.

hostname: jtg-win23.sfbay.sun.com
Please contact the submitter for the login.

c:/jdk/bin/java -version
java version "1.6.0-rc"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.6.0-rc-b60)
Java HotSpot(TM) Client VM (build 1.6.0-rc-b60, mixed mode, sharing)

Flag used:
"-server -XX:+ShowMessageBoxOnError -Xincgc"

Log location: d:/tmp/atgrun.2204.-server
The crash dump location: d:/atg_b60_crash.dmp
Crash available on seems tobe unrelated to VM.
Stacktrace shows that crash happens in implementation of jio_print, so it likely
happened during logging
Is this bug still reproducible, or I can close it?

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I haven't run the same config recently. So I have just started the test with rc b68.
Thanks.