I've discovered something quite odd in IE 9 and FF 10.0.4 if you have this type of a table layout:
Code:
<table cellspacing="0" cellpadding="2" border="1">
    <tr>
        <td colspan="2">Column 1 & 2</td>
        <td>Column 3</td>
    </tr>
    <tr>
        <td>Col1</td>
        <td colspan="2">Col 2 & 3</td>
    </tr>
    <tr>
        <td>Col1</td>
        <td colspan="2">Col 2 & 3</td>
    </tr>
    <tr>
        <td>Col1</td>
        <td colspan="2">Col 2 & 3</td>
    </tr>
</table>
The result is not at all what you would expect:
Name:  Table_Columns.png
Views: 1873
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Anyone have any idea why the last 3 rows are ignoring the colspan=2 on the 3rd cell?