CSS - Horizontal Overflow

Hi there!

I'm in a bit of a dilemma...I'm trying to get my content area to, (if images, et cetera, stretch the screen) to scroll horizontally. This is mainly a problem on forums, and on smaller screen resolutions. However, if the screen is fine, and just stretches vertically, I'd like the scrollbar to... not exist. Not even the weird, inactive faded one. How would I do this? I've been playing with overflow, but it hasn't been working. :'(

My CSS works in IE and Mozilla but not Netscape or Opera
I have a 2 column website, built with 2 relative position DIVs, with overflow set to auto. Because of this, I turned off overflow on the body tag and on the html tag (overflow: hidden;). I didn't want to have 2 scroll bars on the right side of the window. When I first tested this on 4 browsers, IE, Mozilla, Netscape and Opera, it worked great, only having one scroll bar on the right side of the window when the page was longer than the window height. But when I moved to a new host server recently, I discovered that Netscape and Opera stopped working. They now simply give me blank screens. When I remove the "overflow: hidden;" specifications from the body tag and the HTML tag in my CSS file, Netscape and Opera once again display my web pages. However, now I get 2 scrollbars on the right side of all 4 browsers (in IE, the second scrollbar isn't actually there, but the space holder for the scrollbar is there).

Is there a cross browser way for doing what I'm trying to do? Or am I faced with detecting the browser type on the server-side, and setting the style sheet appropriately?

Here are the related parts of my CSS:

/* CSS styles */
BODY {
font-family : Verdana, Arial, Helvetica, sans-serif ;
font-size : 10pt;
background : Black;
color : White;
margin: 0;
padding: 0;
border-width: 0;
overflow: hidden;
}


HTML {
overflow: hidden;
}


#LeftNavDIV {
position:relative;
width:185px;
height:100%;
float:left;
padding:2px 0px 0px 0px;
margin:0px 0px 0px 0px;
border:1px solid white;
overflow:auto;
}


#ContentDIV {
position:relative;
height:100%;
width:75%;
float:right;
padding:0px 0px 0px 0px;
margin:0px 0px 0px 0px;
border:0px dashed #336699;
overflow:auto;
}

this is the code i'm having problems with:

Code:

<style type="text/css">

body {
	font: normal 10px Verdana, Arial, Helvetica, sans-serif;
	color:#666;
 	margin : 0;
	padding : 0;
}

/* text */

h1 {
	font: bold 10px Verdana, Arial, Helvetica, sans-serif;
	line-height:30px;
}

/* div classes */

div.row {
	position:relative;
	left:10px;
	width:326px;
	height:20px;
	z-index:1;
	margin-bottom:8px;
	text-align:right;
}

div.cell_title, div.cell_content {
	position:absolute;
	top:0px;
	float:left;
	padding:0px 0px 0px 8px;
	border:1px solid #E4E4E4;
	text-align:left;
	line-height:17px;
	
}

div.cell_title {
 	background-color: #E4E4E4;
	left:0px;
	width:100px;
	z-index:2;
}

div.cell_content {
	background-color:#FCFCFC;
	left:100px;
	width:224px;
	z-index:3;

}

/* form elements */

.input {
	font: normal 10px Verdana, Arial, Helvetica, sans-serif;
	color:#666;
	background-color: #FCFCFC;
	height:15px;
	width:213px;
	border:0;
	}

.textarea {
	font: normal 10px Verdana, Arial, Helvetica, sans-serif;
	color:#666;
	background-color: #FCFCFC;
	height:100px;
	width:213px;
	border:0;
	overflow:auto;
	}

</style>

<h1>Contact</h1>
<form action="?menu=contact" method="post" name="contact">
<div class="row">
	<div class="cell_title"><label for="name">name:</label></div>
	<div class="cell_content"><input type="text" class="input" name="name" id="name"/></div>
</div>

<div class="row">
	<div class="cell_title"><label for="email">email:</label></div>
	<div class="cell_content"><input type="text" class="input" name="email" id="email" /></div>
</div>

<div class="row">
	<div class="cell_title"><label for="message">message:</label></div>
	<div class="cell_content"><textarea class="textarea" name="message" id="message"></textarea></div>
</div>

<div class="row">
	<input type="image" src="includes/images/btn_add.gif" name="Submit" value="Submit">
</div>
</form>

My problem is that my "row" div's overlay if their content is larger. Because of that i cannot see the send button from my form (the textarea height is bigger that the height of the "row" div - i need the layer to expland according to the content, but i don't want it to overlay on what is after it!).
I hope that you understood my problem and could help my with it.

Thanks in advance!