What do I have to do to get my house menu module to include the second level of pages

Parent Page

    Child 1

       Child 1a

       Child 1b

    Chid 2

Currently, only Child 1 and Child 2 will appear in the menu, I can't get 1a and 1b to be included.   I've tried adding a second instance of housemenu to my skin (one instance is used for a top navigation bar).  That only gives me Child 1a and Child 1b and nothing else.

Then I looked at the HTML that DNN was spitting out and saw that when I tried to add a HouseMenu as a module, it looked like if I tweaked my CSS, it would pick up, but that didn't work either:

#navigation ul ul a{
padding-left: 12px;
background-color: #6699cc;
width: 132px;
_width: 144px;
}
#navigation li ul{
position: absolute;
left: -9999px;
margin-left: 144px;
_margin-left: 144px;
margin-top: -21px;
z-index: 999;
}

I'm lost as to where to go from here.