Dynkin

Now have version 1.6.7 (last). Problem still exists. According to micahjm add this to your functions.php:

add_action( 'admin_head', 'admin_css' );
function admin_css() {
	echo '<style>
		div#ed_toolbar.quicktags-toolbar {
			position: relative !important;
		}
		div.CodeMirror.cm-s-default.CodeMirror-wrap {
			margin-top: 0 !important;
		}
  	</style>';
}