jackennils

forget the last comment

it works now!

thanks so much =)

Yep, you’re right. It’s the theme.
There are 3 entries with z-index in the style.css

the horizontal menu and banner:

/* Banner and Menu */
#banner { position: relative; z-index: 100; height: 115px; width: 800px; background: url(images/banner2.gif); }
#banner h1 { display: none; }
#banner img { border: 0; margin-left: 5px; }
#banner ul {list-style: none; padding: 0; margin: 0; max-height: 13px; padding-top: 28px; padding-left: 2px; }
#banner ul li { position: relative; z-index: 200;   float: left; }
.menu_divider { display: block; width: 1px; height: 79px; background: #FFFFFE; }
.menu_item { display: block; width: 120px; height: 13px; margin-top: 30px; }
.menu_item a:link, .menu_item a:visited { font-size: 13px; font-weight: bold; color: #fff; letter-spacing: -1px; }
.menu_item a:hover { color: #A4CB39; }
.menu_item a img { margin-right: 5px; }

logo image:

/* --- logo image styles ---*/
.logo {
	width:800px;
	height: 115px;
	position: absolute;
	left: 0;
	top: 0;
	font-size: .1em
	z-index: -200;

and the navigation = sidebar:

/* Navigation */
#navigation {position: relative; z-index: 100;  width: 190px; float: right; margin-right: 2px; font-weight: bold; font-size: 12px; }
#navigation ul li a { display: block; max-height: 22px; width: 190px; padding: 4px 0px; }
#navigation ul li a span { padding-top: 5px; }
#navigation a:link, #navigation a:visited { color: #FFFFFF; }
#navigation a:hover { color: #A4CB39; background: #323232; }
#navigation a:hover img { color: #A4CB39; background: none; }
#navigation ul { list-style: none; margin: 0px 0 10px 0; padding: 0px; text-align: left; }
#navigation ul li { margin-top: 2px; }
.nav_title { width: 190px; height: 22px; background: url(images/title_pattern.gif); }

I already tried to lower them, but it didn’t help.