Slideshow title remain static when scrolling down

Hi, little problem with the slideshow that turn the site into a big bug! when I scroll the page down or up, whatever, the faded part that show the title is doubled : i mean I have the title on the slide show (with a white faded background), and a second one (the white background of the title), which is loonking like a static shadow.

And I need to skip that but really dont’t know how!
for a clear understanding site adress is trading-experience.net

I’m using antisnews theme (very good but a couple of big bugs and developper seems not to care about the template!).

Many thanks in advance for your help.
Philippe