Hi Ozh!
Thanks again for quick updates
After updating to v3.5 it works fine on my (so far) only WP 3.1 site. Then I tried lowering the "Break if more than X menu entries" - and encountered an issue: If the dropdown needs more than two columns, it expands sidewise outside the browser window. If it takes only one o two columns it seems to word perfectly.
Just to let you know
Thanks,
Kjetil
http://wordpress.org/extend/plugins/ozh-admin-drop-down-menu/