[jQuery] Tooltip onlink inside <td> falls below the table

[jQuery] Tooltip onlink inside <td> falls below the table


Hi,
I am using Jörns tooltip plugin. The tooltip shows but below the whole
table and not under the link. I am using this css:
#tooltip {
    position: absolute;
    z-index: 3000;
    border: 1px solid #111;
    background-color: #eee;
    padding: 5px;
    opacity: 0.85;
}
#tooltip h3, #tooltip div { margin: 0; font-size:11px }
The table does not have any float. I am also using tablesorter plugin
on the table.
<table class="tablesorter">
<thead>
<tr>
<td>Heading</td>
</tr>
</thead>
<tbody>
<tr>
<td><a href="#" title="Here is the title">Link text</a></td>
</tr>
</tbody>
</table>
could it be the tablesorter plugin?