@ Cole001, stay away from position: fixed/absolute/relative and use the natural flow of things unless absolutely necessary. And it isn't in a simple horizontal css menu.
@aaronoafc I really think you stopped midway through the example because some easy stuff is missing. Like
Code:
#nav li {
float:left;
list-style: none;
padding: 5px;
border-left: 1px solid #ccc;
}
for starters. Go back and redo the tutorial.