Varför blir det en liggande scroll?

På den här sidan får jag i Internet Explorer en liggande scroll längst ned på sidan. Med eldräven funkar allting utmärkt.

Får ni också en liggande scroll i IE?
Om ja, någon som vet vad det beror på?

Så här ser main.css ut:

body {
	margin: 0;
	padding: 0;
	background-color: #D2381B;
	font-family: Verdana, Geneva, Lucida, Arial, Helvetica, sans-serif;
	font-size: 0.7em;
}

#webpage {
	width: 600px;
	margin: 0px auto;
	background-image: url(images/webpage_bg.gif);
	background-repeat: repeat-y;
	background-position: center;
}

	#webpage_top {
		padding: 25px 40px 0px 60px;
		height: 150px;
		background: url(images/webpage_top.gif) no-repeat top center;
		text-align: left;
		color: #FFF;
	}
	
		#webpage_top a {
			color: #FFF;
			text-decoration: none;
		}
		
		#webpage_top a:hover {
			color: #FFF;
			text-decoration: underline;
		}
		
		#webpage_top h1 {
			margin: 0;
			font-family: "Trebuchet MS", "Bitstream Vera Sans", Verdana, Lucida, Arial, Helvetica, Sans-serif;
			font-size: 3.5em;
			text-shadow: 0.2em 0.2em 0.2em #666;
			
		}
	
	#webpage_content {
		margin: -40px 8px 0 55px;
		color: #3A5245;
	}
	
		#content {
			padding: 15px;
			width: 300px;
			float: left;
			line-height: 1.3em;
		}
		
			#content p {
								
			}
			
			#content p.justify {
				text-align: justify;
			}
			
			#content a {
				color: #D2381B;
				text-decoration: underline;
			}
			
			#content a:hover {
				color: #13934C;
				text-decoration: underline;
			}
			
			#content h2 {
				margin: 8px 0 30px 0;
				font-family: "Trebuchet MS", "Bitstream Vera Sans", Verdana, Lucida, Arial, Helvetica, Sans-serif;
				font-size: 2.2em;
			}
			
			#content h3 {
				margin: 0;
				font-size: 1.2em;
			}
			
			#content li {
				margin: 0 0 30px -39px;
				list-style: none;
				list-style-image: none;
			}
			
			#content .datetime {
				color: #666;
				font-size: 0.9em;
			}
		
		#sidebar {
			padding: 20px;
			width: 130px;
			float: left;
			font-size: 0.9em;
			line-height: 1.4em;
			}
			
			#sidebar #navigation li {
				margin: 0 0 0 -35px;
				font-size: 1.1em;
				font-weight: bold;
				
			}
		
			#sidebar a {
				color: #06C;
				text-decoration: none;
			}
			
			#sidebar a:hover {
				color: #F60;
				text-decoration: none;
			}
			
			#sidebar h3 {
				margin: 0 0 10px 0;
				font-size: 1.3em;
			}
			
			#sidebar li {
				margin: 0 0 20px -35px;
				list-style: none;
				list-style-image: none;
			}
	
	#webpage_bottom {
		clear: both;
		height: 40px;
		background: url(images/webpage_bottom.gif) no-repeat bottom center;
		text-align: center;
		font-size: 0.9em;
		color: #666;
	}
	
		#webpage_bottom a {
			color: #06C;
			text-decoration: none;
		}
		
		#webpage_bottom a:hover {
			color: #F60;
			text-decoration: none;
		}

.img_left {
	display: box;
	margin: 5px 10px 5px 0;
	float: left;
}

.img_right {
	display: box;
	margin: 5px 0 5px 10px;
	float: right;
}

Tack på förhand :)