Rails spinoffs - Sep 2005 - cumulativeOffset problem with dynamically loaded elements

I have a page where I am replacing a table element after the page has 
loaded.
I get an error (on ie 6) when prototype.js calls cumulativeOffset. For the 
new table element, requesting the element.offsetParent property results in 
an "unspecified error" that brings my whole page to a crashing halt.

Does anyone have any ideas or suggestions?

Thanks,
Cathy
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