[jQuery] Interface: Slight problem with slider

[Gordon]

I am experimenting with the slider functionality of te interface
plugin.  H have managed to get a workign slider, but I noticed a
slight but very annoying problem in FireFox 1.5.  When I select and
drag the handle around, it seems to jump down and to the right by one
pixel.  Has anyone run into this problem?

demo code:

div.slider {
        width: 200px;
        height: 15px;
        position: relative;
        background-color: #CCCCCC;
        border: solid 1px black;
        margin: 2px;
        padding: 0px;
}
div.slideHandle {
        width: 5px;
        height: 15px;
        position: absolute;
        background-color: #000000;
}


$('#test').Slider (
{
        accept          : '.slideHandle',
        restricted      : true,
        onChange        : function (a,b,c,d) {console.log (a + ', ' + b)}
});

<div class="slider" id="test"><div class="slideHandle" id="slideLow"></
div></div>