tabs used to work in iPad Safari but now they don't -- content truncated

tabs used to work in iPad Safari but now they don't -- content truncated

Last year I retrofitted my website to use jQuery tabs (1.4.2 with 1.8.1) and it worked on all browsers and iPad Safari. But since then it has gotten broken on iPad only (still working everywhere else).  I believe it was in conjunction with the recent iPad O/S upgrade, though I'm not absolutely certain about this because I just found this problem yesterday when I happened to borrow an iPad.

The tabs are now truncating content -- but not always-- and not always in the same place in the document :-( .   The variability makes me think it's a timing issue. My site is document-centric and the content is quite large, e.g. one html document that is organized into five tabs is almost 200K.

I've tried setting the tab height to equal the height of the largest tab by including the script block below at the bottom of the document in question, but that hasn't fixed the problem. I've also tried 1.5.1 instead of 1.4.2 but the problem persists.

<script type="text/javascript">
$("#tabs div.ui-tabs-panel").css('height', $("#Introduction").height());
</script>

Thanks for any suggestions.