[jQuery] sortable helper

[jQuery] sortable helper


I am using jquery sortable in the latest version (1.7.1) , and found
out helper and placeholder option is not quite working
as I was expecting.
If I do something like below, when I move around each div's, original
divs are the actually the one moving, not the clone.
Any idea ?
$(#col).sortable(
{
helper:'clone',
opacity:'0.1'
}
)
<div id="col">
<div class="t" />
<div class="t" />
<div class="t" />
</div>