Strange text-resizing problem

Strange text-resizing problem

I've almost finished redesigning a site using jquery-ui tabs, which is doing a great job for me. But I've hit a problem with IE.
The tabs contain a set of forms with select drop-downs. In IE, the text in the options ridiculously large (too large for the space available, so the bottom of the text isn't visible).
A bit of investigation (using Firefox, as I don't have direct access to IE) shows that the text in the selects is initially the right size, but when the page is re-rendered by the tabs widget, the font size gets increased.
If anybody can suggest a way I can stop this re-sizing happening, I'd be very grateful; an afternoon of Googling has failed to supply a solution.
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Tony Green
Ipswich, Suffolk, England
www.beermad.org.uk/
www.suffolkcamra.co.uk/pubs/
My PGP public key: www.beermad.org.uk/cgi-bin/pgp.cgi
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