[bratwebdesign]

Change your #navigation ul:

From this:

#navigation ul { 
             width : 900px;
             margin : 0 auto;
             padding : 0;
}

To this:

#navigation ul { 
	margin: 0 auto;
             padding : 0;
	width: 325px;
}

If you add more menu items to the list then adjust the width to allow for the extra menu items.