After rev 1736 I don't get any menus in the VM backend in every browser neither in the simple nor in the extended view. May be the bug happend in rev 1730 (header.php) or rev 1735 (extlayout.js.php).
patrik
(J 1.5.10, VM 1.1.3rev 1736)
[attachment cleanup by admin]
checked again: works fine in extended layout, but no menus in simple layout, see attachment in the above post.
Fixed in rev1737