Dropdown sometimes does not display right

This errors occurs only randomly and is also
repeatable in the fresh installation of the template.
it only seems to happen with firefox.

Do you have a clue how to solve that problem?

s1.directupload.net/file/d/3310/7vbrcrmw_jpg.htm

Hello,

You should submit your site url here so we can check that error.

Regards

www.domain.de/joomla3/

move and klick on kundendienst and partner and
inbetween move over Produkte|Leistungen to see that error
occur sometimes. Error only shows up on the menu
"Produkte|Leistungen".

But, the error was also visible right after the
fresh installation of the template.

Did you install this tempalte for Joomla 3 ? if yes, it was not compatible with joomla 3.0

no .. it's 2.5.11

And the error occured also after the fresh installation.

demo.omegatheme.com/joomla25/mega_orthodontis/

If you expand the menu "Our services" with a few more menus
the error must occur as well.

I did not see any error on FF, what's your ff version ?

Regards