IF you have sliced your website using photoshop and export as “html with images”.
and then you changed doctype from:
<!DOCTYPE html PUBLIC “-//W3C//DTD html 4.01 Transitional//EN”>
to:
<!DOCTYPE html PUBLIC “-//W3C//DTD html 4.01//EN” “http://www.w3.org/TR/html4/strict.dtd”>

You will probably see gaps in table cells. These can be removed by two ways.

One way:
remove all the carriage returns and change

<td>
<img src=”abc.jpg” />
</td>

to

<td><img src=”abc.jpg” /></td>

You can add carriage return inside a tag if you realy need it. like

<td
><img src=”abc.jpg” /><
/td>

Another Way:
add css in your page to convert all images in the table cells to block type.

img { display:block; }

Hope this would be helpful.