Hi,
I increased it to 10 but nothing happened, I cleared cache.
#navv li:hover ul ul,
#navv li:hover ul ul ul,
#navv li:hover ul ul ul ul,
#navv li.sfhover ul ul,
#navv li.sfhover ul ul ul,
#navv li.sfhover ul ul ul ul {
position:absolute;
left: -999em;
z-index:1;}
to
#navv li:hover ul ul,
#navv li:hover ul ul ul,
#navv li:hover ul ul ul ul,
#navv li.sfhover ul ul,
#navv li.sfhover ul ul ul,
#navv li.sfhover ul ul ul ul {
position:absolute;
left: -999em;
z-index:10;}