accordion settings in Safari

accordion settings in Safari

using the accordion plugin it is initialized as:

jQuery(function() {
    jQuery("#faq").accordion({
        heightStyle:content
    });

In IE, FF, Chrome it is shown as it used to be.
In Safari there is just one long list.

After changing the initialization to

jQuery(function() {
    jQuery("#faq").accordion();
      });

even in Safari it is working (PC & Apple)

But I like to have also the 'heightStyle' set to the content.

I tried the next option code:

jQuery("#faq").accordion({heightStyle:"content"});

No effect not in any browser; always show fixed height width a scrollbar.

alternative setting:
jQuery("#faq").accordion("option","heightStyle","content");

No effect

tried another option:
jQuery("#faq").accordion("option","active",5);
in every browser the fifth element is show / active.

Is it just the 'heightStyle' that isn't working?

any ideas, pointers?
thanks

nb. safari 5 (PC), IE 10 (PC), FF 27 (PC), Safari 4 (Apple), FF 3.6 (Apple)