Browser Hangs while running the Stress test suite, after running for 8 days and 12 hours.

Environment:
Windows XP Pro. Service Pack 2.
Browser : iexplorer.

Attched the plugin trace and log files.

How to reproduce.
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All the testsuites are avalibale here.
http://sqindia.india.sun.com/disk13/deployment/raghu_tiger_UR/deployment/tests/stress/pluginhtml-default/StressTests.html

You can open this URL. It will execute the test cases by default. (do not block the popup window).
Which version of the JRE is under test?
java version "1.6.0-beta2"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.6.0-beta2-b74)
Java HotSpot(TM) Client VM (build 1.6.0-beta2-b74, mixed mode, sharing)

What is the exit criteria for reliability for the JRE under test?
Exptected Result:
Test cases under reliabilty testsuite is suppose to work/run for many days (we test for 14 days) with out any Browser crash, Browser Hang.

What is the test system configuration?
Windows XP Professional.
Service Pack2

Has the submitter captured any additional debug info from the IE hung process?
No. Only Plugin trace and log file is there. Which doesnt give much hint to why this is hanging.