Unremovable line in cfmenu

Hi all,

I have created a 3 levels deep vertical menu with cfmenu including several styles. Everything works so far except for one thing: On top of every list of menu items there is a line shown, which I am not able to remove yet. It looks like a divider line. I have no clue why it is there and how I can get rid of it. Can somebody give me tips to remove this line?

Thanks in advance,

Frank