높이가 일정치 않아서 생기는 문제같은데요. 

kboard-latest-title, kboard-latest-date 클래스에 height 값을 입력해보시는건 어떨까요?

 
}

tr.kboard-latest-tr {
 border-top-width: 0px;
 border-right-width: 0px;
 border-bottom-width: 0px;
 border-left-width: 0px;
 margin: 0px;
 padding: 0px;
}
.kboardoutline a {
 text-align: right;
}
.kboardoutline .table1 tbody .kboard-latest-tr .kboard-latest-title .cut_strings div .icon-caret-right a li {
 text-align: left;
 font-size: 12px;
}
.kboardoutline .table1 tbody .kboard-latest-tr .kboard-latest-title
.cut_strings { width: 150px; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
</style>
<div class="kboardoutline">

<table class="table1">
 
<tbody>
   <?php while($content = $list->hasNext()):?>
 <tr class="kboard-latest-tr">
    <td  class="kboard-latest-title"><div class="cut_strings">
      <div align="left"><i class="icon-caret-right"><a href="<?=$url->set('uid', $content->uid)->set('mod', 'document')->toStringWithPath($board_url)?>">
         <li><?=$content->title?></li>
                
        </a></i></div>
    
    </div></td>
    <td class="kboard-latest-date"><?=date("Y.m.d", strtotime($content->date))?></td>
   </tr>
       <?php endwhile;?>
     
 
 </tbody>
 </table>
 
 
    </div>