in /themes/default/templates/checkout/login_registration.tpl.php:
<div class="stretcher" id="login_stetcher">
should be
<div class="stretcher" id="login_stretcher">
I checked and this is still in revision 1319.
Tracker URL https://dev.virtuemart.net/cb/issue/1913
problem with IE -
change from <div class="stretcher" id="register_stretcher"> to <div class="stretcher" id="login_stretcher"> .