Table cellspacing and html formatting issues

I’m working with a simple table, and I’m coming across some instances where pd4ml refuses to render a cell in the table.

This fails to render:

<table cellspacing="19">
<tr>
<td></td>
<td>Name
</td>
</tr>
</table>

But, simply add some newlines, and it’s all better:

<table cellspacing="19">
<tr>
<td></td>
<td>
Name

</td>
</tr>
</table>

Or, even stranger, decrease the original table’s cellspacing to 18

<table cellspacing="18">
<tr>
<td></td>
<td>Name
</td>
</tr>
</table>

This renders fine. What’s the deal?

Testing Environment:
PD4ML 3.8.0fx9 pro – Java
Windows 7 / Linux 2.6.18-238.1.1.el5
No special Options, just new PD4ML().render