Horizontal line in my tables using HTML ?

Hello,

I’m trying to get rid of my horizontal line in my tables using HTML code. Working with twenty eleven theme

This is the code I get in my CSS.

border: 0;
font-family: inherit;
font-size: 100%;
font-style: inherit;
font-weight: inherit;
margin: 0;
outline: 0;
padding: 0;
vertical-align: baseline;

This is my table:

<table style=”background-color: #000000; width: 1000px;” border=”0″ cellspacing=”0″ cellpadding=”0″>
<tr border=”0″ cellspacing=”0″ cellpadding=”0″>

<td><img src=”wp-content/uploads/ozone_logo.png” /></td>
<td><img style=”margin-left: 20px;” src=”wp-content/uploads/North.jpg” alt=”” /></td>
<td><img style=”margin-left: 57px;” src=”wp-content/uploads/slingshot.jpg” alt=”” /></td>
<td><img src=”wp-content/uploads/fone.jpg” alt=”” /></td>
…

even if everything is set to “0” border I so see the border on all my rows but not on the column.
If I set everything to boder “1” I see my borders corectly.

seems to be a bug?

any help would be appreciated.

Tx!