JQuery :: LavaLamp - Rollover Line Does Not Align With Navigation Text

I am using the lava lamp plugin on my navigation page and I am having trouble fixing an issue I have got. I have it working perfectly, it sits right within he height of the nav and when I rollover it works. The only problem I have is when I rollover the lavalamp line does not align with the navigation text. I have attached a screen shot so you can see how it is working and if you wanted to have a look I have attached the code:

This is the CSS;
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ul, li {
margin: 0;
padding: 0;
} #line {
width:auto;
height:15px;
position: absolute;
z-index: 1;
top: 35px;
float:right; .....

This is the Jquery;
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(function($) {
$.fn.spasticNav = function(options) {
options = $.extend({
overlap : 20,
speed : 500,
reset : 2000,
color : 'none',
easing : 'easeOutExpo'
}, options); .....