quando questo menu in CSS incontra un form a tendina, il menu scompare come da link :
LINK

questo succede solo con Explorer per PC, con Mozilla, Explorer per Mac, Mozilla funziona...

il pezzo in CSS e' qui sotto:


codice:
body {
font: normal 11px verdana;
}

ul {
	margin: 0;
	padding: 0;
	list-style: none;
	width: 160px; /* Width of Menu Items */
	border-bottom: 1px solid #fff;
	}

ul li {
	position: relative;
	}
	
li ul {
	position: absolute;
	left: 159px; /* Set 1px less than menu width */
	top: 0;
	display: none;
	}

/* Styles for Menu Items */
ul li a {
	font: bold 10px Verdana, Arial, Helvetica, sans-serif;
	display: block;
	text-decoration: none;
	color: #333;
	background: #DECEAC; /* IE6 Bug */
	padding: 6px 0px 6px 10px;
	border: 1px solid #fff;
	border-bottom: 0;
	}

/* Fix IE. Hide from IE Mac \*/
* html ul li { float: left; height: 1%; }
* html ul li a { height: 1%; }
/* End */

ul li a:hover { color: #FFFFFF; background: #E19900; } /* Hover Styles */

li ul li a { padding: 2px 5px; } /* Sub Menu Styles */

li:hover ul, li.over ul { display: block; } /* The magic */

img.setinha {
	border: 0;
	width:4px;
	height:7px;
	padding-right:5px;
}