Thanks for the suggestions Jason.
Both options do the trick so I have some flexibility to work with. Since I'm using one of the CSS templates, I can't set the float to visible without messing up the footer's placement and styling but I can use the minimum height on the div container or the scroll option if needed to make it display the full menu. Will continue to play with it to get the right combination in terms of menu box size/placement as well now that I know what was causing the cut-off. Much appreciated!