Multiple Accordions within panels tabs results in ODD behaviour...

Using with Panels 5.x-2.0-rc1a, this occurs also with Panels_accordion 5.x-1.1:

I have a layout of a panel_page using panels_tabs style to layout up-to 5 mini-panels horizontally within each is up-to 5 views stacked vertically using the panels_accordion style. i.e.
tab-1 {view-1, view-2...} | tab-2 {view-1, view-2...} ...

So that makes one use of panels_tabs script and up-to 5 uses of panels_accordion script.

Here is the issue: however the tabs are sorted the first two tabs' accordion layout's work great, but:
In Firefox 3.0.1 the third accordion along locks on the first item and subsequent uses display all content.
In Opera 9.62 the third and subsequent uses just display all content.

It appears to me that code re-use on a page results in issues after the second time.

I welcome any thoughts, suggestions (excluding "Don't overuse accordion") to this issue.

Gary

P.S. I just added the patch from http://drupal.org/node/377384 to alter the scroll-top, this made no difference to the previous issue.