URGENT!!! Subpages menu pic keeps repeating!!!

Hello geotso, my site is www.colombiaventura.com,thankyou very much. :)

With firebug I could fix it, thank you very much, at the bottom of the template_css.css I added this code:

#flashes.menu > li {
background-color: transparent;
background-repeat: no-repeat;
border-right: none!important;
float: left;
height: 542px;
}