You aren't understanding what I'm saying. You said you used this for your category graphic in the category description:
<td style="width: 100%;">
<img src="/skin1/images/title_categories.gif" align="absmiddle" border="0" height="26" width="170"><font class="VertMenuBoxNewsTitle"></font>
</td>
I'm saying use this instead:
<img src="/skin1/images/title_categories.gif" border="0" height="26" width="170" alt="">