In the Live-Search-Popup plugin, the magnifying glass is not, by default, aligned with the search box.
To fix this, edit the live_search.css file in the plugins folder, changing the value as below:
.livesearchpopup .lupe {
position: absolute;
top: -2px;
left: 105px;
}
This puts the magnifying glass in the proper position. Hope this helps someone.