$views->preview() does not display In IE9?

Describe the problem you have found and a link to the spam:
I just create a view 'slideshow', but without a block or a page,
and my code is:

$views = views_get_view("slideshow");
    if ( is_object($views) ) {
        print $views->preview(); 
    }    
    $views = NULL;

and i create 2 tpl.php : views-view-unformatted--slideshow.tpl.php ,views-view-fields--slideshow.tpl.php

it works fine in FF. but in IE9, the output is:

<div class="view view-slideshow view-id-slideshow view-display-id-default view-dom-id-ef8d69c64fdda56a1cdac28553bb299e">   
</div>

Is it the settings of the view 'slideshow' not correct? And How can I make it work in IE9?