I figured it out and decided to share in case anyone else has this issue:
In the following code in the style sheet where “top” is 35, was 40 when it was causing the menu to disappear. It was floating too far below the menu. I changed mine a lot to adjust the menu size, so 35 may not work for you, but that’s the figure to play with.
/* Dropdown */
#access ul li ul, #access ul li:hover ul li ul {
display:none;
z-index: 9999hu;
}
#access ul li:hover ul, #access ul li ul li:hover ul {
display:block;
}
#access ul li ul {
border-top: 5px solid #e4a1a1;
position:absolute;
background-color: #fff;
top:35px;
left:0px;
width:175px;