Tabs: height of tab header stretching to "float:right' elements in page?

Tabs: height of tab header stretching to "float:right' elements in page?

Hi,

I have a fairly standard 2 column page with one "menu" column being 'float'ed to the right. Seems the height of the jQuery-UI tab header is being stretched to the bottom of my right floated menu column rather than the bottom of the tab headers.

Is this a known issue? Any ideas how to fix this?

jquery-1.4.2
jquery-ui-1.8 (smoothness)
Firefox 3.6

Thanks in advance,

Ian