In standard instalation of the “GrayBox”, a very light version of the “LightBox” module DHTML menu module will go over the box oppened by the “GrayBox”
To solve fast thsi issue open graybox/gb_styles.css and change as following (WATCH ZINDEX VALUE):
#GB_overlay {
background-color: #000;
position: absolute;
margin: auto;
top: 0;
left: 0;
z-index: 1100;
}
#GB_window {
left: 0;
top: 0;
font-size: 1px;
position: absolute;
overflow: visible;
z-index: 1550;
}




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