Please update "\cuteeditor_files\Dialogs\InsertImage.php", change it to:
<table border="0" cellspacing="0" cellpadding="0" width="100%">
<tr>
<td valign="top" style="width:0px;height:240px;">
<iframe src="browse_Img.php?<?php echo $setting; ?>&Theme=<?php echo $Theme; ?>&GP=<?php echo $Current_ImageGalleryPath; ?>" id="browse_Frame" frameborder="0" scrolling="auto" style="display:none;border:1.5pt inset;width:270px;height:246px"></iframe>
</td>
<td valign="top" style="width:566px">
<div style="BORDER: 1.5pt inset; VERTICAL-ALIGN: top; OVERFLOW: auto; WIDTH: 566px; HEIGHT: 250px; BACKGROUND-COLOR: white; TEXT-ALIGN: center">
<div id="divpreview" style="BACKGROUND-COLOR: white; height:100%;width:100%">
<img id="img_demo" alt="" src="../Images/1x1.gif" />
</div>
</div>
</td>
</tr>
<tr>
<td colspan="2" style="height:2">
</td>
</tr>
</table>
Regards,
Eric