[TYPO3] rgtabs repeats all content below the displayed tab

[Tony Lush]

I am trying to implement rgtabs on a site, but am finding that all the 
included CEs are duplicated below the active rgtabs displayed area. An 
example page is at:

http://argusanalyzers.com/cms/test-tabs.htm

Mootools Setup is configured for rgtabs and rgaccordion, and the Ajax option
is selected. When Ajax is not selected, all minor H3, H4, H5, H6 appear as 
extra tabs.

If I pick the CE's from another, hidden, page the tabs appear properly, but 
again only under Ajax.

Does anyone have any suggestions?

Thank you -- Tony Lush