Placing is different in different browsers

[Noslo]

I use Opera, but users that operate any other browser say the header box is out of alignement, which it is.

Screenshot in both browsers:
http://imageshack.us/photo/my-images/259/problemmz.png/

Header Template

<div class="above_body"> <!-- closing tag is in template navbar -->
<div id="header" class="floatcontainer doc_header">
	<vb:if condition="$stylevar['titleimage']"><div><a name="top" href="{vb:link forumhome}" class="logo-image"></div></vb:if>
	<div id="toplinks" class="toplinks">
		<vb:if condition="$show['member']">
			<ul class="isuser">
				<li><a href="login.php?{vb:raw session.sessionurl}do=logout&amp;logouthash={vb:raw bbuserinfo.logouthash}" onclick="return log_out('{vb:rawphrase sure_you_want_to_log_out}')">{vb:rawphrase log_out}</a></li>
				<vb:if condition="$show['registerbutton']">
				<li><a href="register.php{vb:raw session.sessionurl_q}" rel="nofollow">{vb:rawphrase register}</a></li>
				</vb:if>
				<li><a href="usercp.php{vb:raw session.sessionurl_q}">{vb:rawphrase user_control_panel}</a></li>
				<li><a href="{vb:link member, {vb:raw bbuserinfo}}">{vb:rawphrase your_profile}</a></li>
				<vb:if condition="$notifications_total">
				<li class="popupmenu notifications" id="notifications">
					<a class="popupctrl" href="usercp.php{vb:raw session.sessionurl_q}">{vb:rawphrase your_notifications}: <span class="notifications-number"><strong>{vb:raw notifications_total}</strong></span></a>
					<ul class="popupbody popuphover">
						{vb:raw notifications_menubits}
					</ul>
				</li>
				<vb:else />
				<li class="popupmenu nonotifications" id="nonotifications">
					<a class="popupctrl" href="usercp.php{vb:raw session.sessionurl_q}">{vb:rawphrase your_notifications}</a>
					<ul class="popupbody popuphover">
						<li>{vb:rawphrase no_new_messages}</li>
						<vb:if condition="$show['pmmainlink']"><li><a href="private.php{vb:raw session.sessionurl_q}">{vb:rawphrase inbox}</a></li></vb:if>
					</ul>
				</li>
				</vb:if>
				<li class="welcomelink">{vb:rawphrase welcome_x_link_y, {vb:raw bbuserinfo.username}, {vb:link member, {vb:raw bbuserinfo}}}</li>
				<vb:if condition="$vboptions['enablefacebookconnect']">
					{vb:raw facebook_header}
				</vb:if>
			</ul>
            {vb:raw template_hook.header_userinfo}
			<vb:comment><p>{vb:rawphrase last_visited_x_at_y, {vb:raw pmbox.lastvisitdate}, {vb:raw pmbox.lastvisittime}}</p></vb:comment>
		<vb:else />
			<ul class="nouser">
			<vb:if condition="$show['registerbutton']">
				<li><a href="register.php{vb:raw session.sessionurl_q}" rel="nofollow">{vb:rawphrase register}</a></li>
			</vb:if>
				<li><a rel="help" href="faq.php{vb:raw session.sessionurl_q}">{vb:rawphrase help}</a></li>
				<li>
			<script type="text/javascript" src="clientscript/vbulletin_md5.js?v={vb:raw vboptions.simpleversion}"></script>
			<form id="navbar_loginform" action="login.php?{vb:raw session.sessionurl}do=login" method="post" onsubmit="md5hash(vb_login_password, vb_login_md5password, vb_login_md5password_utf, {vb:raw show.nopasswordempty})">
				<fieldset id="logindetails" class="logindetails">
					<div>
						<div>
					<input type="text" class="textbox<vb:if condition="!$username"> default-value</vb:if>" name="vb_login_username" id="navbar_username" size="10" accesskey="u" tabindex="101" value="<vb:if condition="$username">{vb:raw username}<vb:else />{vb:rawphrase username}</vb:if>" />
					<input type="password" class="textbox" tabindex="102" name="vb_login_password" id="navbar_password" size="10" />
					<input type="text" class="textbox default-value" tabindex="102" name="vb_login_password_hint" id="navbar_password_hint" size="10" value="{vb:rawphrase password}" style="display:none;" />
					<input type="submit" class="loginbutton" tabindex="104" value="{vb:rawphrase log_in}" title="{vb:rawphrase enter_username_to_login_or_register}" accesskey="s" />
						</div>
					</div>
				</fieldset>
				<div id="remember" class="remember">
					<label for="cb_cookieuser_navbar"><input type="checkbox" name="cookieuser" value="1" id="cb_cookieuser_navbar" class="cb_cookieuser_navbar" accesskey="c" tabindex="103" /> {vb:rawphrase remember_me}</label>
				</div>

				<input type="hidden" name="s" value="{vb:raw session.sessionhash}" />
				<input type="hidden" name="securitytoken" value="{vb:raw bbuserinfo.securitytoken}" />
				<input type="hidden" name="do" value="login" />
				<input type="hidden" name="vb_login_md5password" />
				<input type="hidden" name="vb_login_md5password_utf" />
			</form>
			<script type="text/javascript">
			YAHOO.util.Dom.setStyle('navbar_password_hint', "display", "inline");
			YAHOO.util.Dom.setStyle('navbar_password', "display", "none");
			vB_XHTML_Ready.subscribe(function()
			{
			//
				YAHOO.util.Event.on('navbar_username', "focus", navbar_username_focus);
				YAHOO.util.Event.on('navbar_username', "blur", navbar_username_blur);
				YAHOO.util.Event.on('navbar_password_hint', "focus", navbar_password_hint);
				YAHOO.util.Event.on('navbar_password', "blur", navbar_password);
			});
			
			function navbar_username_focus(e)
			{
			//
				var textbox = YAHOO.util.Event.getTarget(e);
				if (textbox.value == '<vb:if condition="$username">{vb:raw username}<vb:else />{vb:rawphrase username}</vb:if>')
				{
				//
					textbox.value='';
					textbox.style.color='{vb:stylevar toplinks_form_input.color}';
				}
			}

			function navbar_username_blur(e)
			{
			//
				var textbox = YAHOO.util.Event.getTarget(e);
				if (textbox.value == '')
				{
				//
					textbox.value='<vb:if condition="$username">{vb:raw username}<vb:else />{vb:rawphrase username}</vb:if>';
					textbox.style.color='{vb:stylevar toplinks_form_input_defaultValue.color}';
				}
			}
			
			function navbar_password_hint(e)
			{
			//
				var textbox = YAHOO.util.Event.getTarget(e);
				
				YAHOO.util.Dom.setStyle('navbar_password_hint', "display", "none");
				YAHOO.util.Dom.setStyle('navbar_password', "display", "inline");
				YAHOO.util.Dom.get('navbar_password').focus();
			}

			function navbar_password(e)
			{
			//
				var textbox = YAHOO.util.Event.getTarget(e);
				
				if (textbox.value == '')
				{
					YAHOO.util.Dom.setStyle('navbar_password_hint', "display", "inline");
					YAHOO.util.Dom.setStyle('navbar_password', "display", "none");
				}
			}
			</script>
				</li>
				<vb:if condition="$vboptions['enablefacebookconnect']">
					{vb:raw facebook_header}
				</vb:if>
			</ul>
		</vb:if>
	</div>
	<div class="ad_global_header">
		{vb:raw ad_location.global_header1}
		{vb:raw ad_location.global_header2}
	</div>
	<hr />
</div>

Any help? Anything obvious in the code?

--------------- Added [DATE]1326208031[/DATE] at [TIME]1326208031[/TIME] ---------------

No one has any ideas?

--------------- Added [DATE]1326214844[/DATE] at [TIME]1326214844[/TIME] ---------------

Come on someone?