Hard to say much without being able to see the call stack reported with that exception; we can't tell which array is running into trouble, or even whether it's within our code. Either submit a Bugzilla entry with a small sample that provokes the failure, or post a trace, or both...
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Joe Kesselman, IBM Next-Generation Web Technologies:
XML, XSL and more. "may'ron DaroQbe'chugh vaj bIrIQbej"
("Put down the squeezebox and nobody gets hurt.")
