When Internet Explorer displays a white page...

.. this may be because of a wrong script tag. Actually, both Internet Explorer 6 and 7 will fail, if you use the script tag like this:

<script type="text/javascript" src="blabla.js" />

IE instead requires an explicit closing tag, like this:

<script type="text/javascript" src="blabla.js"></script>

PS: This is primary a note to myself, since I get trapped by this over and over again…