There were a few issues I noticed with the BV9 version, be sure you have downloaded the latest, would not hurt to download it again now and reinstall ...
Here is a note I found.
Make sure you reserve enough space for the menu to expand.
FireFox seems to only display the menu items for the space you have allocated for it in BlueVoda.
Be sure to use web friendly fonts, otherwise they will appear incorrectly on some viewers computers, also throwing this off ... Here is a link to go by.
http://www.ampsoft.net/webdesign-l/WindowsMacFonts.html