TABS GK4 font issue

hi i have been pulling my hair out for days on this one now and can find an answer

my site which can be found here http://79.170.44.86/sarahbradford.co.uk/ is using the template with the tab mod as the demo but I have added an extra tab so one more than the demo and all works great apart from that fact the the font (content) in the tab i have added is in bold and all the others are not?

See the site above and see the 4th tab in the cycle

i have checked all CSS and can not find what is making the tab I added have bold font in the content while the rest is fine

any ideas where i should look

Cheers