Blackberry web application wrapping floating divs on top of each other

Our site http://m.sa2010.gov.za has a simple menu structure that relies on floating divs to stack 2 columns of menu elements. Unfortunately it seems to wrap all elements on top of each other when viewed from most Blackberry 开发者_开发技巧phones? Any suggestions.

works beautifully on most mobile devices including iPhone. Check it out.

The BlackBerry browser is notoriously bad for the lack of full CSS support, especially on older models. You may have to experiment with other ways to get what you want, such as using a table-based layout.