Ich habe nun von Rob eine Antwort erhalten.
This is a problem (bug) in a variety of web browsers. Basically, these browsers "force" the plugin or form object to the front. All other content, including floating boxes will appear behind the plugin object.
Because MenuMachine menus are built using Dynamic HTML, they are affected by this issue. This problem affects all DHTML menu systems, not just MenuMachine ones.
There is no workaround apart from designing the page so that the plugin object does not conflict with the menu.
Also aufpassen, wo die Sachen auf der Seite platziert werden.
Kusi
http://www.k-k.ch