browse button missing from input file in IE8?

I've taken a screenshot of my file input method for both IE 9 and 8. Why would IE not show the br开发者_开发百科owse button? the table sits inside a form like so:

<table>
    <tr>
        <td colspan="2"><h3>Upload Photo</h3></td>
    </tr>      
    <tr> 
        <td colspan="2"><input type="file" name="mapimage" id="mapimage"/></td>
    </tr>
    <tr>
        <td><input type="submit" value="Upload" name="update_image" id="update_image"/>      </td> 
        <td><img id="loading" src="images/loading.gif" alt="working.." style="visibility: hidden;" /></td> 
    </tr>
</table>

I've tried adding a size attribute but it still isn't showing up. Are there any work arounds for IE 8 and below or is this a known issue?

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I saw this as well when I was testing in IE Tester. Asked someone who had a native version of IE8 and saw it looks fine. I believe it's just a bug in IE Tester.

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Unless you have some css somewhere doing this I see no problem. It works for me in IE8.