Superfish drop down menu item turns black for the visited page(dropdown menu item) on Safari Web browser.

Hi,

I have no problem with the superfish menu on any other browser. Eventually when i check my site on Safari(5.0.3) i have come across with this weird problem on the image attached. After i visit the page in drop down menu it turns black and never changes to normal again.

Any help or idea about the css(imho) or else would be appreciated.

Thanks.